I'm being picky... LOL. I can use basically use any rear end from any full size Dodge truck from 1965 -2003... LOL. Of course the 2nd gen ram would be wider stance. I can also use a Dakota/Durango rear end, or a car 8.75 also. In fact, a B-body rear end has the exact same perches as the truck. It just narrower after the leaf perch. Just need a offset rim. So tons of options