American Star Arm Bushings Suspension Review

The bushings were too narrow leaving about 1/16 inch on each side. However, adding shims on each side compensated for the sag and kept the AArms from going slightly crooked.

These bushing flanges are 5.2mm and the factory bushings (5439270) which have survived 12 years are 7mm. I've seen another customer use washers to fill the gap, but I suspect the old bushings have buckled over time. I don't see any damage in a small Z move on the machine while all other moves are stopped. Steel spacers take the load from the tightened bolt instead of the bushings themselves. The only other change I noticed was that the base OAL of the factory hubs was 35mm and their OAL is…