I had the same problem with my 52 Ford F-1 pick up when I swapped out the frame to an S-10 frame. The original Ford rearend width was 60 inches, the S-10 is only 55 1/2 inches. I've swapped my rearend to an S-10 4X4 rear because it's 4 inches wider (59 1/2 inches). Both the S-10 and the S-10 4X4 rears have the same spring perch measurements (40 1/2 inches), so it's a direct swap. For the front width I used a 1 inch spacer on each front wheel. That shouldn't cause too much stress on the spindles.
Last edited by lakota; 03-07-2006 at 09:42 PM.