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Re: 1951 GMC 1/2 ton rear end swap?

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Posted by jose bagge on February 14, 2008 at 11:36:51 from (

In Reply to: 1951 GMC 1/2 ton rear end swap? posted by John Schaffer on January 09, 2008 at 11:12:18:

I'm a big fan of the Ford 9" rear for just about every application- super strong, a lot of ratios and easy to narrow. Particularly fond of early Lincoln rears with the disc brake set up. If you're not afraid of some fabrication, go the lincoln route and get rear disc brakes with the conversion. These are coil sprung, so torch off all the brakets. measure your old rear outside drum to outside drum, subtract from the lincoln rear width and divide by 2- this is the amount you'll take out of each side. Use a 4" pipe cutter ( Harbour Freight $49.00) to cut the housing once you pull the axles- this will give you nice parallell cuts that line back up easily and without a jig. look for a section of tube that's as round as possible and cut slow. When you weld the tubes back together, use short stitch welds so that it does warp. Shoot the axles with all the disc brake junk still on 'em to Greg Moser (look in the magazines) and tell 'em how much to take off (same amount you cut from each side of the tubes). He'll cut and respline for about $150 w/ freight. Weld on some leaf pads ($12.00/pair JEGS) after setting pinion angle and you have a super strong rear w/ disc brakes, cable e-brake and most often posi.
Bullet proof- high zoot-and a pretty simple fab job!


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