The beauty of the S10 frame is, the front end and back half are built separately and welded together at the factory in the various wheelbases. If you start with one that's too long, it's easy to take a piece out of the straight bit and make it work. You can also take out the kickup that's normally behind the cab and make it straighter for a car body to fit easier. We did that on a '54 Vanguard pickup, worked great.