if you reuse your gears you will only be swapping the ring gear over to new carrier , you wont need the full install kit unless you are servicing the pinion bearings or pinion seal ,
you will need a carrier shim kit and its recommended to replace the ring gear bolts (use loctite)
if you are doing install you will need a dial indicator w mag base to set the backlash , they are inexpensive under 40.00
if going to 30 spline axles (stock is 28spline) you will need larger carrier side bearing for the carrier , stock carrier bearings wont fit so be sure to order the correct bearings.
if ordering strange eliminators i would recommend you get your axles from strange . the direct fit c-clip street axles should work with the smaller strange eliminator meant for stock axles but if you want 30 spline race axles (the track legal non c-clip ones with the moser insignia in the end) the larger diameter race axles from moser dont work with the large bore strange eliminators as the strange stuff has their own machined surface on the axle for an exterior seal in the eliminator that the moser axles don't
