PFR57-106 has been designed to replace the rear trailing arm front bush where the arm locates onto the chassis. These bushes are no longer available from Porsche unless you buy the complete arm at a...
PFR46-210 fits S14/S15 & R33/R34 only - Bush length 50mm with an OD of 31.25mm. For 200SX S13 & Skyline R32 models use PFR46-203 - Bush length is 45mm with an OD of 33mm.