In their FAQ section, they answered my question. It looks like it's not a simple tweak of a screw like I had hoped. You have to change the drive gear in the transmission. It's something I've lived with for 6 years now anyway, so no biggie. I recently did a gear swap and it changed again, so that's why I asked.
94 YJ 4", SYE, 33 mud t's on MT classics; 4.10's with Detroit Truetrac in rear