There actually is a kit to swap half ton spindles and disk brakes on a 3/4-ton. I saw it written up in one of the truck magazines sometime in the last couple of years.

I would expect you would just swap the complete crossmember with disks from a '72 to '87 1/2-ton and you might even find one that already has the dropped spindles.


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...