[lukecp]

I put in a set of S-10 shoulder belts in my '72, and total it cost me less than $20 ($15 for the belts from a junkyard, plus a few dollars for fasteners). The passenger side ended up being a complete bolt in using all the factory mounting points, and the driver's side would have been but the gas tank is in the way. Since your in-cab tank is gone, it should be a complete bolt in for your truck, and I think all you will have to buy are the belts (make sure to get them out of a standard cab S10), and two bolts for the upper mounting points.