Yes the cab will not "go on & all line up". If you are wanting the small back window for a different look, using just the back panel would be the way to go. I checked this out years ago, after seeing nice clean rockers & cab corners on a few of those trucks (due mostly to being up so high out of the slop I suppose). The floor & some of the firewall are different & since the floors are one of the first things to rot, it makes it not a very likely swap since you need the floor from the donor cab. Lorne