not a lot really, for better compatibility you will want 97-01 for complete compatibility you will want 00-01
you would be able to use things like the header panel, fenders, some of your interior light bulbs will be the same. but pretty much everything else will be different enough to become a pain in the ass, your hard parts, transmission, axles, engine will all be different, they could still be used with some modifications, but a 96 is not what you will want, it was pretty much a bastard year where things were switching to obdII and there are a lot of changes being made, in my opinion 96, 97, 98, 99 are only compatible completely to their own years. 2000 and 2001 as far as i can tell are identical to each other. i'd really suggest finding a 00-01 for a parts vehicle, they can be found pretty cheap.