The bed sides for a half-ton are reproduced, so you can buy them new.

Measure the front track width again. I think you'll find it really doesn't fit very well.

I have an '89 K3500, which is probably wider than the C1500, but its wider than an AD by about a foot. I can't imagine making this swap look right.

The S-10 isn't 5 inches too narrow at the front is it? The swaps I've seen looked like the front fit real well. At the rear the 2-wheel-drive types are too narrow, but swapping to a 4-wheel-drive rear usually fixes it.

1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...