Without exception, all VAZ 2107 owners often wonder what shock absorbers can be installed on their car. This dilemma is quite obvious. The development of the model took place back in the 60s, and today any such car is simply not able to handle well at speeds above 100 km/h. This fact will be proven by any owner of the seven. The car rocking at high speed is often the cause of factory parts. Therefore, VAZ modifications begin with improving the suspension.
It so happens that most owners who are keen on constant modifications immediately replace standard parts with improved ones.
What types of shock absorbers are there?
It is possible to install one of three types on a classic:
- oil;
- gas-oil with variable hardness;
- gas-oil with constant hardness.
As a rule, each type has its own advantages and disadvantages. Standard shock absorbers are oil shock absorbers that come from the factory. This is the manufacturer's recommendation.
As for double-sided shock absorbers, they cannot be installed on a VAZ, because they cannot be secured in the traditional way. Drastic changes to the fastening system will be required.
Shock absorbers suitable for the VAZ 2107 can also be installed on other models of this manufacturer. The exceptions are 2104 and 2102 - longer and more powerful shock absorbers are installed on these machines.
Rear shock absorbers for VAZ 2107
The rear shock absorber struts are identical in characteristics and design to the front ones. They still have the same significant drawback - excessive softness. Since the VAZ 2107 is often used for economic needs, in particular for transporting various cargoes, overly soft shock absorbers are a problem. Therefore, installing seven shock absorber struts and springs from Niva on the rear wheels is more justified.
| Dimensions of the rear original shock absorbers on the VAZ 2107 | ||||
| vendor code | Rod diameter, mm | Case diameter, mm | Body height (excluding stem), mm | Rod stroke, mm |
| 21012915402 | 16 | 42 | 310 | 182 |
For the rear wheels there is also an original gas shock absorber, which is not installed from the factory - 21010291500610.
Analogs of rear shock absorbers for VAZ 2107
For the rear suspension of the VAZ 2107, replacements are especially relevant, since in most cases the owners of this car require stiffer shock absorbers.
| Manufacturer | vendor code | price, rub. |
| KYB | 343098 (gas) | 1400 |
| KYB | 443123 | 950 |
| Fenox | A12175C3 | 700 |
| QML | SA-1029 | 500 |
KYB 443123
QML SA-1029
Fenox A12175C3
What are the best shock absorbers for the VAZ 2107 to buy? If the car is not actively used for business purposes, and is operated mainly in urban conditions, then stock oil shock absorbers are well suited. In all other cases, many drivers recommend installing shock absorber struts from Kayaba (KYB), oil ones if moderate rigidity is needed, or gas ones if a stiffer suspension is needed.
According to the rating of shock absorbers for the VAZ 2107 on PartReview dated 04/07/20, owners prefer KYB products. Manufacturers FENOX, Bilstein and Monroe also stand out.
What to choose
Before placing a bet on any type of shock absorbers, you need to take into account your driving style and the conditions of upcoming use. As mentioned, each species has its own set of properties, which determines their behavior. Let's look at the characteristics in more detail:
- Oil shock absorbers are a factory equipped item. People call them “relatives”. The working fluid is oil, and two-pipe versions are installed on classic models to improve reliability. A significant disadvantage of oil shock absorbers is their slow response. At high speeds, the damper simply does not have time to return to its original position to effectively maintain balance. The result is quite a bit of wobble. We advise those people who drive no more than 90 kilometers per hour to choose such shock absorbers.
- The gas-oil damper consists of two types of substances. The main one is oil, and gas is used for stabilization (eliminates excess foam). The result is more efficient shock absorber performance when road conditions change. Installing such a solution on a Zhiguli significantly improves the driving properties of the car. There is virtually no sway. The disadvantages of a gas-oil shock absorber relate to the tendency to miss sharp shocks.
- Gas-oil dampers with variable stiffness are rarely used on Zhiguli cars. First of all, this option itself is expensive. The part has an electromagnetic valve that automatically adjusts to the driving mode, and therefore changes the amount of gas in the main shock absorber tube. The result of this process is a change in rigidity.
Design and purpose of shock absorbers
Shock absorbers used in a car's suspension are used to dampen vibrations and shocks transmitted to the car body when driving on a bad road. They provide the wheels with reliable contact with the road surface, ensuring controllability regardless of driving mode and surface quality.
In the first cars, the functions of shock absorbers were performed by springs made of metal plates. In them, vibrations were damped due to friction between the plates. With the increase in vehicle speeds, this design no longer provides adequate safety and comfort. The vibrations began to be damped in a package of friction discs, which rotated relative to each other as the car passed uneven surfaces. But this design overheated greatly, and the disks quickly wore out. Only in the third decade of the 20th century were shock absorbers invented that dampen vibration energy by flowing liquid under pressure between two containers. The principle of operation of the shock absorber has been preserved to this day - the kinetic energy of vibrations is damped due to hydraulic (gas) resistance.
A shock absorber has two main elements: a piston and a cylinder. Inside the latter there are chambers with oil and air or oil and gas. Oil or gas resists the movement of the piston, converting the vibration energy of the body into heat.
Only the fillers have changed, on which the dynamic characteristics of the unit depend.
What other options are there?
Most drivers leave the standard “original” shock absorbers. Some people install dampers from the Niva - such parts are much stiffer, because the 2121 model was originally designed for poor road conditions.
Gas-oil ones are not particularly popular, but are great for those who drive quite quickly. This is an indispensable part for tuning. Improved comfort. Adjustable shock absorbers are used in sports cars. For ordinary cars, such a solution is impractical.
The importance of the quality of shock absorbing springs
An important element that influences the quality of adhesion of car wheels to the road surface is the shock-absorbing spring, which softens shocks, reduces vibrations and shaking, which accelerate the wear of shock absorbers.
Indicators characterizing the quality of the spring are:
- Rigidity.
- The length is in good condition.
- Length under load.
- The diameter of the rod from which the part is made.
The table shows the characteristics of springs installed on various VAZ car models.
| Spring and car type | Load (kg) | Spring stiffness (kgf/cm) | Normal spring length (mm) | Spring length under load (mm) | Bar diameter (mm) |
| Front spring VAZ 2106, 2107 | 450 | 35.3 | 360 | 232 | 13.13 |
| Rear spring VAZ 2106, 2107 | 305 | 18.9 | 434 | 273 | 12.4 |
| Front spring VAZ 2110, 2114 | 325 | 19.0 | 383 | 211 | 12.9 |
| Rear spring VAZ 2110, 2112 | 325 | 19.7 | 403 | 240 | 11.6 |
| Front spring VAZ 2112 | 355 | 21 | 383 | 211 | 13.2 |
| Rear spring VAZ 2114 | 295 | 17.1 | 418 | 245 | 11.15 |
Replacing springs on cars operating in Russian road and climatic conditions is usually required when the mileage is 100,000 km or more.
When choosing springs, it is necessary to take into account their characteristics and the quality of products from various manufacturers. The design of the spring must correspond to the original one, you should also take into account the general layout of the suspension parts and the dimensions of the shock absorber.
Springs from different manufacturers differ in the type of steel, manufacturing technology, and the quality of the anti-corrosion paint and varnish coating. Combination with unsuitable shock absorbers and incorrect selection of unit parameters accelerates spring wear.
Which manufacturer to choose
In fact, all manufacturers of parts for VAZ cars should be the same, but there is still a difference in driving performance.
Oil shock absorbers from different companies do not differ from each other. It will not be possible to find gas-oil parts made by “our” manufacturers - they are simply not produced. Therefore, foreign companies come to the rescue. The most common companies are:
- Kayaba;
- Sachs;
Here are the most common companies that meet the price/quality criterion. In fact, for domestic classics you can find a list of manufacturers that will be several times larger. If you have not found products from the above brands, before choosing another company, read the detailed information in detail. Forums and all kinds of communities will become faithful assistants in this matter.
Why is shock absorber wear dangerous?
Failure of shock absorbers leads to a loss of vehicle stability on the road: skidding and rolls occur, and the brakes work worse. With such unstable driving, tires wear out faster, supports break, and other important suspension elements fail, which leads to an increased risk of an accident.
With 50% wear, the braking distance of the car increases by 2 m (if the car is moving at a speed of 50 km/h). That is, worn shock absorbers are just as dangerous as faulty brakes.
The reasons for accelerated wear of shock absorbers can be factory defects, corrosion, accumulation of dirt, temperature and mechanical deformation, and malfunction of other suspension elements.
Signs of shock absorber wear are:
- body swaying during maneuvers;
- skidding on corners;
- sagging of the rear part of the body when accelerating the car and the front part when braking;
- increased sensitivity to road irregularities;
- uneven tire wear, “squealing” when turning and braking;
- vibration of the steering wheel while the car is moving;
- Frequent activation of the ABS anti-lock braking system.
The need for urgent replacement of shock absorbers is also indicated by the appearance of oil leaks on the struts.
If there is obvious wear on one of the shock absorbers (rear or front), it is necessary to change both cylinders at once, since they work in pairs, and their quality most likely deteriorates simultaneously.
Experts advise diagnosing shock absorbers every 20,000 km, and this should be done at a service station where there is special high-precision equipment for this. It is important to remember that it is usually difficult for a driver to “by eye” determine the initial signs of deterioration in the performance of shock absorbers.
Bottom line
As a rule, shock absorbers on classic VAZ models are highly reliable, and many do not even think about replacing them prematurely. But it is necessary to have information about what shock absorbers can be installed on the seventh model. Over time, parts will still need to be replaced. A clear sign of damper failure is the car swaying even at low speeds.
It is best to make the replacement yourself if you have previously done similar things and have some experience. Otherwise, it is better to contact a private workshop or car service. The price of repair work for a VAZ is quite affordable and does not require large investments in comparison with foreign cars.
Article: 2101-2915402С, additional articles: 2101-2905402-06, 2101-2915402
Order code: 000006
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Shock absorber VAZ-2101 rear SAAZ SB 2101-2915402SB
- Connecting dimensions, mm: - maximum: 492 - minimum: 310.5
- Piston stroke, mm: 181.5
- Weight, kg: 1.3
- Nominal forces at a piston speed of 0.31 m/s, N (kgf): - compression stroke: 283 (28.8) - rebound stroke: 1060 (108)
Mounting details for basic models:
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Today, the next article in the series “Crystal VAZs or typical breakdowns of domestic cars” is dedicated to the “classics”: VAZ-2101, 2103, 2104, 2104, 2105, 2106 and 2107. These cars have been driving along our roads for decades and, despite Despite all the shortcomings that we will talk about, their popularity is still high.
Features of repair of shock absorber mounts
The designers of VAZ cars of the classic family did not provide for the possibility of serious loads when designing the design of the upper mounts for the rear dampers. Therefore, many car enthusiasts encounter problems when installing rear struts on the upper mounts.
The upper mounts are metal studs secured to the body cross member at the rear of the car. Over time, metal fatigue appears at the fastening points due to the constant loads from the operation of the dampers, so the metal studs often crack and break off, or the fastenings themselves fail.
To solve problems with the upper fastenings, owners of classic Lada cars often resort to replacing the studs with new ones. To do this, holes are cut out at the locations of the fasteners using a grinder and the old studs are removed.
After that, new steel pins and washers are installed in the mounting holes, and the fastening points are securely welded with a welding machine.
You can safely install new shock absorbers on new mounts and not worry about the reliability of the mounts.
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