To limit the spring travel of the suspension, there is a rubber on both sides of the rear axle. Without this rubber, the rear axle can move too much, with all the consequences that this implies.
With lowered cars and off-road use, the stop will be reached more quickly. If you use the original stop rubbers, they will have trouble stopping the movement. So you need to find a better solution, a rubber that can absorb higher forces without tearing spontaneously.
These urethane rubbers are the solution. Urethane is a rigid and virtually indestructible material, ideal for more demanding situations.
Since urethane is rigid, the silentblock will not slip off the mounting ball, use glycerin (listed in the options tab) to facilitate assembly.
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