Military portal axles are equipped with final drives. Warriors on the UAZ - the pros and cons of Military bridges on the UAZ batone

UAZ is a fairly common and well-known car that has an increased level of cross-country ability. Such a car can often be found among Soviet motorists. This is due to the fact that for the first time the unit was created at the Ulyanovsk Automobile Plant. It has improved technical characteristics. Naturally, the primary equipment of such a unit did not differ much from the modern modification. Nevertheless, manufacturers do not stop at the spot and develop this type of vehicle, which allows achieving incredible results.

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The history of the car

According to statistical and analytical data, approximately 50% of domestic motorists own such a vehicle. Many of them repeatedly ask the question: how do military UAZ bridges differ from civil ones? To cover this vast topic, it is necessary not only to study historical information, positive and negative aspects, but also to understand the non-standard nuances and differences of such components.

The legendary and well-known 469 UAZ was created on the basis of GAZ 69 by order of the Ministry of Defense during the outbreak of primary hostilities. At that stage of the development of this unit, tasks were set related to the creation of an SUV of a new direction, which would have a military purpose and had several qualities:

• light weight;
• increased cross-country ability;
• dynamism;
• easy maintenance;
• increased level of performance;
• low cost.

A few years later, the UAZ was released, which today is widely used in agriculture and is distinguished by an increased level of cross-country ability and endurance. In connection with the creation of practically two types of vehicles, the Ulyanovsk Automobile Plant decided to create two types of bridges for the unit, which would have a military and civilian purpose. Historically, specialized bridges for these units were popularly known as:

• "Collective farm" - these are those that were used for civil vehicles;
• portal and gear - were referred to as specialized bridges for military vehicles.

Difference between bridges

First of all, each user of this unit should understand that specialized military axles have a specialized final drive, which is located between the axle shaft and the hub in an additional crankcase.

The advantages of military bridges:

1. stock clearance, which is 8 cm more in the standard;
2. even distribution of the load between the main pair and the gearbox, which increases the vehicle's cross-country ability and ensures its reliability;
3. by the size of the teeth of the main pair. Exceed the standard by several times;
4. increased torque at low engine speeds;
5. the unit does not lose its passability when taking additional weight;
6. not too sensitive to oils that are poured into the gearbox;
7. resistant to temperature fluctuations;

Such advantages of military bridges have a positive effect on the vehicle.

If UAZ owners install military bridges on a civilian vehicle, then some negative situations arise, namely:

• complex installation of components;
• more frequent adjustment of pivots;
• excessive noise during the movement of the vehicle;
• it is important to correctly select the oil;
• carry out maintenance in a timely manner.

It is these problems that are considered the most common. Thus, before installing portal bridges on a "collective farm" vehicle, you must first think about how to avoid negative situations.

Benefits of civil bridges:

1. moderate weight;
2. reduced fuel consumption;
3. repairs available in relation to the price category;
4. lack of excessive noise;
5. comfort;
6. reduced oil consumption.

Naturally, many modern car owners who prefer foreign cars argue that we have this specific vehicle not suitable for movement in an urban environment. However, if you need to drive near mountains, fields or in other non-standard conditions, then finding the best cross-country vehicle of domestic production is almost impossible.

To change or not to change?

Experienced service center specialists do not recommend the owners of "collective farm" UAZs to use military bridges. There is no need to increase the expenditure of money for the elimination of various malfunctions that may be caused by these changes in the system. In other words, we can say that specialized military bridges differ from civilian ones in that they increase the cross-country ability and stability of the vehicle in various conditions. Therefore, if the owner of this vehicle needs to improve the performance of the vehicle, then it is imperative to replace civilian bridges with military ones.

UAZ is an off-road vehicle, which is an ideal vehicle for driving in the countryside, as well as in the autumn-spring period. This is due to the fact that the unit has four-wheel drive. The car is widely used by hunters, fishermen and tourists. In the event of various malfunctions in the relationship of this vehicle, it is recommended to contact experienced professionals at the service station, where a comprehensive technical inspection of the car will be carried out and various malfunctions will be eliminated.

Overview of the military bridge UAZ

The UAZ Patriot off-road vehicle is designed to overcome various off-road conditions. But when there is a goal of overcoming difficult off-road, and impassable roads and hilly terrain, then this necessarily requires the installation of portal bridges. These devices have been known for a long time, but they have been gaining popularity just recently, when applicants for testing portal bridges have appeared. One of these contenders is the UAZ Patriot SUV, therefore, today we will pay attention to the purpose of products, features and some models.

Portal bridges got their origins during the war, when the designers were tasked with increasing the cross-country ability of vehicles. The task was not easy, but doable. Portal axles were invented, which are the placement of the bridge axle higher than the wheel axle. This phenomenon was achieved by installing a special gearbox with gears in the bridge. Portal - they came to be called because of the spatial supporting structure.

This design is used among fans of overcoming offroad tracks, which are becoming more and more popular every year. And now not only outdated UAZ Loaf or Niva, but also modern UAZ Patriot, Chevrolet Niva, etc. are participating in the races. Thanks to this design, the clearance increases on the UAZ Patriot SUV, which is the main function of such units. Due to the use of several gearboxes in the design, the load on the transmission system is reduced, without causing its rapid wear.

Internals of the gearbox

If you are reading this material, then it means that an idea has appeared in your head to tune your UAZ Patriot SUV by installing a portal unit. What are the pros and cons when replacing standard bridges with portal ones?

1. First of all, the presence of a gearbox with gears will lead to a decrease in the vehicle speed, by about 20%.
2. Now the SUV will accelerate three times longer, thanks to the same gearbox design.
3. Reduced vehicle handling.

But along with the minuses, we get inversely proportional pluses:

1. Improved geometric performance, which means better balance when driving on plains, bumps, etc.
2. Increased traction performance.

But if we take into account that the main task of the designers was to ensure high cross-country ability of the car, without focusing on speed, then we can say that they coped with the task. Therefore, if you are going to the mountains in an UAZ Patriot SUV, then it is impossible to do without such devices.

In fact, portal bridges are installed only by those motorists who are not afraid to risk their lives or their cars.

Product features

The installation of gantry units provides not only an improvement in cross-country ability, but also an increase in ground clearance, which is very important for overcoming various aggressive obstacles. By raising the axles above the ground, it becomes possible to install wheels with a larger diameter, which is also important for overcoming obstacles on the off-road.

Due to the presence of a gearbox in the axle, the transmission is relieved. Participation in competitions to overcome obstacles will allow you to achieve victorious results. After all, competitors with conventional axles have no chance of overcoming aggressive off-road conditions. In everyday life, the presence of such a device is not very much in demand, unless you live in a steppe or forest-steppe zone, where you have to drive your UAZ Patriot SUV through forests and hills every day. Thus, we can say that portal bridges are necessary when you are tired of suffering from daily slipping in fords.

Consider some options for portal units for the UAZ Patriot SUV.

Military bridges

During the war, the UAZ Bukhanka SUV was a popular vehicle, which actually received its first military version. Today, more and more often, the owners of the UAZ Patriot SUV are resorting to installing such products at their own expense. Military bridges are characterized by relatively low cost, simplicity of construction and, most importantly, strength. Indeed, in wartime, the main thing was that the product did not fall apart on the go. Therefore, military products are popular to this day, as they are quite reliable and practical.

But here a new snag appears, because it is almost impossible to get military bridges these days. New military units have not been produced by factories for a long time, so you can find them among the ads. Of course, purchasing a device that has already been in use is extremely risky, because there is no guarantee that military products will last a long time. Unless you take into account the fact that they were made wonderfully well.

If military bridges become unusable, then it is not possible to repair them now. Therefore, if they fail, you will simply need to install a more modern version. Therefore, it is up to you to decide whether you should strive to install military structures on the UAZ Patriot, but only in the end you will still have to dwell on modern, as they are called, collective farm options.

Bridges from the UAZ Bars SUV

Portal bridges from the Bars SUV to the UAZ Patriot are military counterparts, but only with an extended track. The track of the Bars design has been expanded by 155 mm from military analogs, and is also calculated for spring types of suspensions.

Car appearance with Bars products

If it becomes necessary to install portal units, it is recommended to opt not for the military, but for the structures of the Bars, which show themselves perfectly when passing on aggressive off-road. To install the Bars instead of the standard one, it will be necessary to replace the universal joint, and the mount of the shock absorbers will also change. With the Bars bridge, you can install wheels up to size 37, while the standard product has 29.5 inch tires.

Of course, the operation of the popular Russian off-road vehicle UAZ Patriot on Bars longitudinal bridges on city roads is not intended, as we have already said that the speed characteristics of a car are significantly reduced. But the movement outside the city, on training grounds, in the steppe or mountains - all this is within the power of an off-road vehicle with longitudinal bridges Bars.

Of course, military bridges and Bars are not the only models for an SUV, foreign analogues are also known, such as:

• Pinzgauer, made in Germany;
• The Unimog, popular among the Nivs;
• Tibus, the most popular products for all kinds of off-road vehicles.

TIBUS final drive

The advantage of the latter option is that by installing such a unit, the speed of the car is practically not reduced. In addition, the performance of the ABS system is maintained, if available on Patrick. Therefore, with the availability of funds, it is possible to establish a foreign analogue, but is it really worth it? Bars Bars, unlike military ones, can be found in UAZ service centers. Installation of products is carried out independently if there is a hole in the garage and a set of tools.

Summing up, it should be noted that Bars portal bridges are the most popular units that show excellent results in competitions.

You can check your MSC and reduce it if needed!

Axles with final drives (Fig. 3.106 and 3.107) are installed as a set (front and rear) on modifications of cars of the UAZ-31512 family with simultaneous replacement of the rear propeller shaft.

Rice. 3.106. Rear axle with final drive:
1 - cover of the main gear housing; 2 - differential bearing; 3,13,49 - shims; 4 - a sealing gasket; 5,7 - drive gear bearings; 6.15 - adjusting rings; 8.42 - cuffs; 9 - flange; 10 - nut; 11 - dirt reflector; 12 - ring; 14 - spacer sleeve; 16 - leading gear wheel of the main transfer; 17 - satellite; 18 - right semiaxis; 19 - side gear housing; 20.29 - oil deflectors; 21 - semi-axle bearing; 22,26,40 - retaining rings; 23 - sealing gasket of the side gear housing; 24 - side gear housing cover; 25 - bearing; 27 - brake shield; 28 - brake drum; 30 - wheel bolt; 31 - pin; 32 - hub bearing; 33.41 - gaskets; 34 - lock washer; 35 - leading flange; 36 - nut of the hub bearings; 37 - lock washer; 38 - bushing; 39 - driven shaft of the side gear; 43 - driven shaft bearing; 44 - driven gear wheel of the side gear; 45 - special nut; 46.50 - drain plugs; 47 - leading gear wheel of the side gear; 48 - right cup of the satellite box; 51 - main gear housing; 52 - washer of the semi-axle gear; 53 - semi-axle gear; 54 - axis of satellites; 55 - driven gear wheel of the main transfer; 56 - left cup of the satellite box; 57 - left semi-axis

Maintenance

Maintenance of axles with final drives differs from the one described above by the technology of changing the grease in the joints of the steering knuckles of the front axles, checking and replacing the oil in the housings of the final drives, as well as adjusting the position of the driving gear 16 of the main gear and its bearings 5 ​​and 7 (see Fig. 3.106 ).

After adjusting the side play, it is necessary to check the meshing of the final drive gears by the contact patch, as indicated in the section "Assembling and adjusting the rear axle assemblies" (p. 73).

After a run of 50,000 km during the next maintenance, it is recommended to tighten the bolts of the final drive gear 44 and the final drive gear 55, as well as the bolts of the removable final drive bearing housing 25.

The position of the gear 16 is adjusted by selecting the adjusting ring 15 of the required thickness. When replacing the main gears and the large tapered bearing or only the main gears, measure the installation height of the large tapered bearing 5 under an axial load of 2–2.5 kN (200–250 kgf) and, if it is less than 32.95 mm by some value, then increase the thickness of the adjusting ring by the same amount compared to that which was installed in the axle housing. When replacing only the large tapered bearing 5, so as not to disturb the position of the gear, measure the mounting height of the old and new bearings and, if the new bearing has a higher mounting height than the old one, then reduce the thickness of the adjusting ring 15, and if it is less, then increase it by difference in bearing heights.

Adjust the preload in bearings 5 ​​and 7 by selecting the adjusting ring 6 and tightening the nut 10. If this cannot be done, then change the number of shims 13 and again, by selecting the ring and tightening the nut, achieve such a preload of the bearings so that there is no axial movement of the gear, and the gear rotates without great effort. Check with a dynamometer with the rubber cuff removed 8. With correct adjustment, at the moment of turning the gear by the hole in the flange, the dynamometer should show 10-20 N (1-2 kgf) for worn-in bearings and 25-35 N (2.5-3.5 kgf ) for new ones.

Rice. 3.107. Front axle steering knuckle with final drive:
a - signal groove; I - right steering knuckle; II - left steering fist; III - wheel shut-off clutch (for optional design see Fig. 180, IV); 1 - oil seal; 2 - ball bearing; 3 - steering knuckle joint; 4 - gasket; 5 - grease nipple; 6 - kingpin; 7 - pad; 8 - steering knuckle body; 9 - king pin bushing; 10 - bearing; 11 - the driven shaft of the side gear; 12 - hub; 13 - leading flange; 14 - clutch; 15 - retainer ball; 16 - protective cap; 17 - coupling bolt; 18 - pin; 19 - lock nut; 20.23 - support washers; 21 - the leading gear wheel of the side gear; 22 - locking pin; 24 - rubber sealing ring; 25 - thrust washer; 26 - axle shaft casing; 27 - bolt of rotation limitation; 28 - stop-limiter for wheel rotation; 29 - steering knuckle lever

Change grease in the joints of the steering knuckles, proceed in the following order:

1. Disconnect the flexible hose from the wheel cylinder of the brake mechanism and the tips of the steering rods from the levers, unscrew the bolts securing the clips of the o-rings of the ball joint and slide the clips with O-rings onto the neck of the ball joint (Fig. 3.107).

2. Unscrew the nuts of the studs securing the lever or the bolts securing the upper pivot pad and remove the lever or pad and shims.

3. Unscrew the bolts securing the bottom pad, remove the pad with adjusting shims.

4. Using a puller (see Fig. 3.102), remove the pivots from the steering knuckle housing and remove the housing assembly with the ball joint hinge.

5. Carefully, without moving the forks apart (so that the balls do not jump out), remove the joint assembly with bearings and gear from the steering knuckle housing. It is not necessary to remove the hinge from the steering knuckle housing and disassemble it without special need.

6. Remove the used grease from the ball joint, joint and housing, rinse thoroughly with kerosene and add fresh grease.

Rice. 3.102. Pin puller

Perform assembly in the reverse order to disassembly, observing the requirements for adjusting the pins. When installing the flexible hose of the brake drive, do not allow it to be twisted. After assembly, bleed the brake drive system (see the "Service brake system" section).

Disassemble the final drive in the following order:

1. After removing the hub with the brake drum (see the section "Removing, disassembling and assembling the hubs"), unscrew the brake line coupling on the rear brake shield (on the front - a tee of connecting pipes and a flexible hose) from the wheel cylinder, unscrew the fastening stud nuts trunnions and remove the spring washers, oil deflector, trunnion, trunnion gasket, spring washer, brake assembly and brake shield gaskets.

2. Unscrew the nut 45 (see Fig. 3.106) fastening the bearing on the final drive shaft, unscrew the bolts securing the final drive housing cover, remove the cover assembly with the shaft, remove the cover gasket and press out the shaft from the cover. In contrast to the left-hand final drive, the shaft 39 and nut 45 of the right gear have a left-hand thread. A nut with a left-hand thread is marked with an annular groove, and the shaft is marked with a blind hole with a diameter of 3 mm at the end face of the spline end.

3. Remove the bolts securing the driven gear and remove the gear from shaft 39.

4. Mark the position of the roller bearing housing 25 on the lug of the final drive housing of the rear axle, unscrew the bolts securing the housing, remove the bearing housing. Do not remove the front axle final drive roller bearing housing without special need. (For the further procedure for disassembling the final drive of the front axle, see above in the description of changing the lubricant in the joints of the steering knuckles.) Remove the circlip 22 of the ball bearing 21, the axle shaft 18 and the oil deflector 20 from the final drive housing.

5. Remove the roller bearing retaining ring 26, roller bearing 25, pinion gear 47 and ball bearing from the axle shaft.

Collect airborne transmission in the reverse order to disassembly, taking into account the following: bearing nut 45 (Fig. 3.106) on the driven shaft of the front and rear final drives, as well as nut 19 (see Fig. 3.107) fastening the bearing and gear on the drive shaft of the front final drive after unscrew the tightening into the groove of the shaft, and squeeze the rings 26 for retaining the bearings on the axle shafts of the rear final drives after installation in the groove; tighten the bolts of the wheel (driven gear) and the removable bearing housing to 64–78 N · m (6.5–8.0 kgf · m), the bolts of the crankcase cover - 35–39 N · m (3.6–4, 0 kgf m).

When repairing axles with final drives, use the data in the tables.

Many owners of real SUVs at some point want to improve the cross-country ability of their SUVs. The most common improvement is replacing "civilian" bridges with a military bridge. They are also called portal bridges. The main difference between the military bridge is the presence of the final drive gearbox.

Types of bridges and their differences and device

Reducer axles are a wheel beam that takes all the load when driving off-road. The axle is equipped with springs that soften the load, and it itself transmits torque to the wheels of the car.

There are civil and military bridges (they are also portal bridges). Craftsmen often make improved versions of military bridges for serious competition. Portal axles, unlike civil ones, have a final drive.

If portal bridges were used only in military equipment, various jeep trials simply could not fully exist.

Portal bridges have several advantages. Some designs can lower the gear ratio by unloading the transmission when large wheels are installed. The overhangs of the car are significantly increased. In normal use, overall flotation is increased by about 40 percent and traction is increased.

Tests carried out by specialists and individual enthusiasts have shown that the installation of final drives and military axles has more than advantages. The maximum speed is reduced by 20 percent, and if large tires are installed, then by all 40. The greatest losses occur in the acceleration dynamics, up to 50 percent. However, since off-road enthusiasts are usually engaged in the installation of the wheel reducer, losses in speed and dynamics do not play a big role for them.

The scheme for improving cross-country ability without loss of dynamic parameters

If you install a wheelset reducer (final drive) on your own transmission, you can improve cross-country ability without losing speed characteristics. In this option, there are three methods of action:

• With your own hands, install military bridges obtained in a military unit or from friends;
• Buy branded final drives and install them on your jeep;
• Give your SUV to specialists who will do everything based on your requests and the size of your wallet.

Based on their capabilities, everyone can choose an option that suits them. It is worth noting that professionals carry out work on the installation of equipment only with their own hands, in order to be sure of the result.

Features of military portal bridges equipped with final drives

If you are determined to get a military bridge, you should know that you can get either used or from conservation. You will have to go over it completely before installing it.

The final drive itself is designed to increase the drive wheel torque by means of a reduction gear. The civilian rear axle transmits torque only to the main pair of wheels, the military also distributes it between the gearboxes. For military needs, the car must have an increased cross-country ability, which is why such a division into civilian and military versions.

How planetary bridges differ from civil ones

• The clearance of the military bridge is much higher (30 for the military, 22 for the civilian);
• The reliability of the military bridge is an order of magnitude higher (military equipment, after all, is a government order);
• Increased traction, compared to the civilian version, the ability to tow heavy trailers;
• Low cost, easy repair and maintenance.

These are the main benefits of using military bridges. Naturally, they also have many disadvantages:

• A large number of details;
• The total weight of the vehicle increases;
• Spring suspension cannot be installed;
• Fuel consumption is noticeably higher than that of the civilian version;
• High noise effect.

Based on the pros and cons, we can conclude that if the SUV is used strictly for its intended purpose, then all the minuses do not play a big role and are compensated by the pluses. If the main task of the car is city driving, then the installation of military bridges cannot be called expedient.

How the rear axle gears are adjusted

The rear axle gearbox requires constant maintenance and adjustment. If this procedure is neglected, time-consuming repairs may soon be necessary. If, when driving at low speeds, an incomprehensible noise is heard, then the unit needs adjustment. This usually happens if the vehicle is frequently overloaded by towing a trailer that is too heavy.

Adjustment tools:

• Calipers;
• Specialized rings for adjustments;
• Torque wrench;
• Tight and strong thread;
• Files and sandpaper.

Before the adjustment procedure, you should disassemble the rear axle and thoroughly wash all parts from dirt. Often there are various damages under the layer of dust, due to which the unit may not work correctly. Usually, problems in the operation of the rear axle are created by various defects in the gears. When grinding the edges of the teeth of the gears, if they are chipped and cracked, it is urgent to replace them with new ones. If the teeth are intact, but have become very blunt, they should also be replaced with new ones. When the damage is minimal, you can try to level them with a file, followed by sanding and sanding with sandpaper of different grain sizes. After grinding, the gears in thickness and size should be close to new condition. Often bringing a part in a visually excellent form, many forget about the number of millimeters of metal cut off. It is advisable to replace the part with a new one.

When assembling the rear axle, the main thing is to remember to install new parts. When installing a new drive gear, there may be a size mismatch with the adjusting ring, since there will be a difference between the new and the old part due to wear. To prevent this situation, it is better to replace the regulating ring as well. If this is not done, the functioning of the rear axle may be impaired. Before installing a new part, all corners, openings and bends must be thoroughly cleaned.

Before installing the bearings in the crankcase, you should check each bearing for defects, then install them and other parts and tighten the nuts carefully. A domestic manufacturer often sins with defects in the production of parts. There is no need to explain what will happen if you install a defective bearing, so when buying, you need to carefully inspect every detail, especially the bearing.

When setting the crankcase line, you need a level. The crankcase line must be strictly horizontal. To determine the gap between the parts, you need a feeler gauge. To obtain the dimensions of the adjusting ring, you need to find the difference between the deflection of the gear and the size of the gap. By calculating this, you will get the correct size of the adjusting ring.

Using a piece of plain pipe, you need to install the adjusting ring on the shaft. To determine the level of scrolling of the gear shaft, you need to tie a thread to the flange, thus tying a dynamometer. The indicator should be equal to 6.9 kgf. If it is lower, tighten the nut, if higher, you will have to replace the spacer sleeve. Install the crankcase into the differential housing and close all gaps down to 0.1 millimeter. To do this, tighten the nuts of the driven gear.

Remember to install the lock plates after fixing the nuts. This completes the rear axle adjustment.

DIY gear repair

Repairing a final drive is a rather complicated procedure, but if you have certain skills, it can be done independently. First you need to remove the housing of the side gearbox itself.

Disassembly of the final drive must take place in a vice. To disassemble the final drive, you need to unscrew the bolts holding the locking plates. Next, you should inspect each bearing for its further operation. If a major overhaul is being carried out, each bearing must be replaced.

When carrying out repairs, it is imperative to add new oil to the final drives. All parts with chips, cracks and dents must be replaced. The gearbox shaft must be checked for integrity. If hard operation is planned, it is better to put reinforced shafts. The oil seals also need to be inspected, the faulty oil seal must be changed.

The final drive assembly must be done using a vise. All elements of the assembly are assembled and installed in the final drive housing. The differential is put in place, the bearing caps are twisted. This completes the gearbox repair.

Military bridge tuning drawing

When installing military bridges on a vehicle, a drawing may be necessary because sometimes the dimensions do not match. This is especially true when installing various foreign military bridges. Their dimensions will definitely not fit your car without preliminary refinement. In this situation, a drawing is needed. For lovers of comfort, you can even find a drawing that allows you to install a spring suspension together with military bridges.

Replacement of wheel sets

Often, regular wheels are not enough to overcome serious off-road conditions. When installing a special rubber, the main pair is usually also replaced. The characteristics of the standard wheelsets are designed specifically for the use of factory rubber. If you do not replace the wheelsets when switching to large wheels, they will not last long.

After replacing the wheel sets, their adjustment must be carried out, which consists in the accuracy of setting the gear backlash and the same tightening of the bolts. The adjustment will help to avoid quick wear of parts and other problems with wheelsets.

When installing military bridges, the main thing is to be aware of what you need a car for. If it was purchased exclusively for off-road use, then the military bridge is the best solution. For a car that will often have to be used on the highway, this is not the best choice.

If you have any questions - leave them in the comments below the article. We or our visitors will be happy to answer them.

The UAZ-3741 car ("Loaf" or "Tablet") is not picky about the road surface - it will go where it is necessary, and not where it is possible. This is largely the merit of the front drive axle, which always comes to the rescue - read about this unit, its types, device and operating rules in this article.

The device of the chassis and transmission of the UAZ-3741

Already the first car of the Ulyanovsk Automobile Plant - the famous GAZ-69 - had a 4 × 4 wheel arrangement, had a fantastic cross-country ability and was extremely unpretentious. And to this day, the concept of "people's SUV", embedded in the legendary "Kozlik", remains relevant and is implemented in all modern UAZ models. Four-wheel drive is also provided in the UAZ-3741 car (until 1985 - UAZ-452), which is better known under the name "Loaf" (which reflects its characteristic shape) or "Tablet" (due to the frequent use as ambulances and ambulances in the army).

The chassis of the UAZ-3741 is based on two drive axles with a classic dependent suspension on semi-elliptical springs and hydraulic shock absorbers. Moreover, only in this model the springs have 13 sheets (in other models there are fewer sheets), and on the front and rear suspension the springs are interchangeable.

The car's transmission has a fairly simple device, it is also built according to the traditional scheme without any special features. The transmission contains a 4-speed manual transmission (classic manual transmission), which works in tandem with a two-stage transfer case (has an overdrive and downshift) - due to the presence of a "transfer case" the number of possible gears is doubled, which greatly increases the transmission capabilities. The torque from the transfer case is transmitted to the front and rear drive axles by means of two cardan shafts. In driving axles, the moment is divided into two flows and directed to the wheels, ensuring their rotation.

Separately, let's say about the purpose and arrangement of the front drive axle of cars of the UAZ-3741 family.