My Dad is wanting to know if a 2wd frame is the frame from a 74 pop top RC up to the 93 RCs. I found him a 79 4wd RC body and he is wanting to put it on a 85 2wd Ramcharger frame. I know the floorboards are lower on the 81-up. Anything else frame wise or will it work? Any help would be great,he's been asking me all day so I figured I'd ask the people that would know!