Rearend width

Exactly how wide it is I do not know. But it is a direct bolt in job. Now if you have an a body 8.25 rear go to the junk yard and find a 96 or olde jeep GC and pull the gears and sure grip unit as well as the rear disc brake setup. Then bolt it all to the a body 8.25 rear. Boom now you have an 8.25 a body rear with a descent set of gears (say 3.55) with a suregrip and rear disc brake for very little cash!

Oh yeah you'll need a shorter length driveshaft.