the first two pics are of the carrier/ring and pinion (with 3.55s) that I put in my rear end and the only thing that HAD to be changed was the carrier bearings. this complete set up came out of dodge Dakota pickup.
this third pic is said carrier/ring and pinion (i bought as a set together)installed in my rear
here is a picture of my rear end that came out of a 1974 factory V-8 car and it originally had a open carrier with 2.45s( the ones memike has now in his rear end). His rear end looks just mine so it should be the same deal.