ok, get the rear 44 with the center, as mentioned, but there are 2 to watch out for- one is only offset 3" and you might not notice- the other is offset at least 9" and it's easy to see... or, you can use the one out of later model isuzu rodeos.

for the front- you need a 75-79 cherokee/waggy axle. some come with flat-top knuckles already but none are tapped.

then you need to go get you some dodge dana 44 diff covers cuz all the other ones are paper thin.

you really should totally overhaul the entire axle from wheel bearings to ball joints and swap your gears and add lockers or welded carriers before the swap.