Shims are placed behind buffers to space them closer to the top engine mount.
Fitting the correct combination of shims means, as the engine moves under acceleration / engine braking the top mount can come into contact with the buffers sooner and reduce any excess movement.
These can be used with OE std buffers or either of our Fast Road or GrpN Style replacements.
Joints in the original gearchange rod setup contain plastic bushes that wear over time, making the gearchange very unprecise and leading to rods popping off and leaving you stranded on a side of the road or track. Our rods are steel-jointed with securing clips that cures both issues.