Thanks for chiming in, good info for the OP. The "pillow block" is not mentioned by name in the FSM, that I could see. So I'm assuming that is what is refered to as pinion shaft, spacer, gear, and washer, as much as I hate to assume anything working on a rig.
No disrespect, but the procedure for removing the axles, which is essential to removing the 3rd member, is quite different between full and semi float. My '94 FSM shows both, I guess, because you could still get semi float in '94 models. Also, since you have to remove rear housing cover, pinion...
IIRC, the '92 has semi-float rear axle with drum brakes. @orangefj45 I'm sure is aware of that so should be able to steer you correctly. Also, perfect time to do a complete front axle service, that is seals, gaskets, bearings, grease (both moly and muti-use), gear oil(of course) and...