PitStopUSA.com - Control Arm Caster Slug

Control Arm Caster Slugs are used in the Slotted Cross Shaft of Upper Control Arms allowing you to fine tune your caster settings with out needed washers. Using A-Arm slug to adjust your A-Arm inner pivot points gives you an easy and repeatable way to adjust your Front Roll Center right at the track. You can move the lower points too, but you bring in rack location issues and bump steer corrections. If you take the time in your shop and know which rack spacers and lower pivot slugs to use at the track you could bolt in the new slugs quickly giving you more options. Your options need to consider camber change curves, static settings and bump steer effects. Changing the lower angles relieve you of camber curve considerations but are more time consuming so a focus on the upper A-Arms may be the best trackside compromise?