The aftermarket may offer a disk kit for the 6-lug hubs. You might want to look into that.

1963 through 1987. The IFS before '63 used torsion bars instead of coil springs, but otherwise are very similar.

The 3/4- and 1-ton IFS look very similar to the 1/2-tons. I don't know if they are interchangeable. They have 8-lug hubs and changed from drum to disk at the same time as the lighter trucks.


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...