I took the entire axle from a 98 Montero Sport and put it in my 87 Raider. Bolted right in. Had to mess with the parking brake cables, crossing them and anchoring them with zip ties. Then had a shop put the rear u joint from the Sport it's huge comparatively. Disc brakes upgrade, and air locker. Why you'd bother putting an air locker on drum brake axle is beyond me.

89 SWB, V-6 5SPD, OME Shocks, 16.5X37's, 2"BL, SR axle, Gen2 brakes, Lincoln w/Superwinch