Before 63, GMC & Chevy shared rear suspension styles, the leaf spring 2wd GMC came in 63. They should be the same rear axle assy. Brian


My \'64\'s in the Gallery
Pictures in my Photobucket
1964 C10 Custom Cab 350/700R4
1964 Suburban 350/700R4
1979 Ford F350 4x4 400/c6