>I thought there was a rear camber kit available for the SHO

I got my kits at NAPA, 2 kits containing 2 adjusters IIRC. 2 adjusters are needed per side, one upper and one lower. They allow for the camber to be adjusted. My 92 Helms manual lists Rear camber adjustment kit Ford part # E7DZ-5K751-A or equivalent.

Brian N.
92 Black 104K
77mm BOS+