Moving the upper ball joint towards the rear will also offset the wheel towards the rear so the wheel will no longer be centered in the fender opening (assuming it was in the first place). How much offset depends on several things. This may or may not cause clearance issues or aesthetic consequences. People have mentioned offset bushings for caster adjustments. If they are available, that is a good option to offset the lower control arm forward. We built custom upper adjustable control arms and modified the lower control arms to get the caster adjustability I wanted with keeping the wheels centered to the body. Attached is a very crude sketch to illustrate the point. I am not suggesting that the upper joint mod shouldn't be done, just sharing for the few that may not know this.
Attachments
Files (1)