I think the next big interval is 130,000 miles for the big things, i usually changed my fluids in the diffs/transfercase every 12,000 miles but thats just me. Never touched trans fluid because it was still very sweet smelling and very red when i got it.
and yes, i traded a running 1995 nissan pathfinder for a 1994 Jeep Cherokee(rolling chassis)- it needed a motor trans, axle. minor rust repair, a lift kit, new brake lines, and a set of wheels and tires, I started with nothing essentially and had to find all my bolts and nuts and everything
99' XJ<->5.5" Lift; 35's; SYE; Winch; much more goodies too
02' WJ<->Rebuilt from wreck, still stock