331-01370 Rear Mono Ball Bearing Mount Set

Rear Mono Ball Bearing Mount Set

This is a set item to convert the rubber mounts on both ends of all rear suspension arms to mono ball bearings.
Note: Some parts where genuine BMW uses ball bearings may also be made with mono ball bearings.

For vehicles before E46-M3, please purchase from the single item page.


Set Item Lineup

331-01370-G8XM
Rear Monoball Bearing Mount Set
Applicable models: BMW G80/81/82/83-M3/M4
Set details
332-01321-G8XM Monoball Bearing Mount Rear Camber Arm IN (2P) G8XM
332-01341-G8XM Mono Ball Bearing Mount Rear Trailing Arm IN (2P) G8XM
332-01361-G8XM Mono Ball Bearing Mount Rear Upper Arm IN (4P) G8XM
333-01301-G8XM Rear Lower Arm Adjustable (2P) F8XM
　
331-01370-F8XM
Rear mono ball bearing mount set
Applicable car models:BMW F80/F82/F83/F87-M3/M4/M2/M2C
Set Details
332-01321-F8XM MONO BALL BEARING MOUNT REAR CAMBER ARM IN (2P) 
332-01341-F8XM MONO BALL BEARING MOUNT REAR TRAILING ARM (2P)   
332-01361-F8XM MONO BALL BEARING MOUNT REAR UPPER ARM (4P) 
333-01301-F8XM REAR LOWER ARM ADJUSTABLE (2P)
　　
　
331-01370-E9XM
Rear mono ball bearing mount set
Applicable car models:BMW E90/92-M3
Set Details
332-01321-E9XM MONO BALL BEARING MOUNT REAR CAMBER ARM IN (2P) 
332-01341-E9XM MONO BALL BEARING MOUNT REAR TRAILING ARM (2P)  
332-01361-E9XM MONO BALL BEARING MOUNT REAR UPPER ARM (4P) 
333-01301-E9XM REAR LOWER ARM ADJUSTABLE (2P)
　
　
331-01370-G29Z
Rear mono ball bearing mount set
Applicable car models:BMW G29-Z4, TOYOTA GR A90/A91-SUPRA
Set Details
332-01321-G29Z MONO BALL BEARING MOUNT REAR CAMBER ARM IN (2P)  
332-01341-G29Z Mono ball bearing mount rear trailing arm IN (2P)
332-01342-G29Z Mono ball bearing mount rear trailing arm OUT (2P)  
332-01363-G29Z Mono ball bearing mount rear guide arm IN (2P)
332-01364-G29Z Mono ball bearing mount rear guide arm OUT (2P) 
332-01365-G29Z Mono ball bearing mount rear control arm IN (2P)
332-01366-G29Z Mono ball bearing mount rear control arm OUT (2P) 
333-01303-G29Z REAR TRACK ARM ADJUSTABLE (2P) 

Material
Mount housing : Stainless steel (SUS303)
Arm rod : Aluminum / Tough ram processing


　
Driving stability and maneuverability
Cornering force can be obtained when tires make optimum contact with the road surface.
To achieve this, the rubber mounts at both ends of the arms, which are the fulcrum for suspension movement, are replaced with mono-ball bearings to prevent the fulcrum from being misaligned. This allows the tires to maintain stable and proper contact with the road surface even under high lateral G-force and high traction during cornering, thereby improving cornering force.
　　
Reduction of drag
Suspension arms are moved by the twisting of rubber mounts, which causes a very large amount of friction. This limits the damping range of the shock absorber, making it difficult to balance the anti-roll and road-following characteristics, which in turn limits cornering force. By changing to a mono-ball bearing mount,friction is minimized and the damping area of the shock absorber is widened, thus improving anti-roll and tire tracking.
　
Durability
To improve durability, monoball bearings with the largest possible diameter are used. This contributes to durability and noise reduction as well as cornering force.
　
Corrosion Resistance
The mount housing is made of stainless steel for high corrosion resistance.
　
Rear Adjustable Arm
An adjustable arm is used mainly to increase the alignment adjustment range.
Mono ball bearings are used for the joints and included in the suspension mount set.
　
Mounting is by set!
Having all suspension mounts with mono ball bearings improves performance. If only some of them are used, the input will be concentrated on the weak points and the suspension movement may be disturbed, resulting in poor performance.

Caution
Please ask an experienced factory to install the product, as it may require specialized knowledge and skills.

Note on ordering
This product is shipped in the order it is ordered, so it may not be able to be shipped immediately even if it is ordered, since it can be ordered even while the product is out of stock.
Please feel free to inquire about the delivery date and waiting order.