The spindles are probably different between the '68 and the '72. I don't know how easy it would be to swap the spindles, but the entire IFS crossmember can be swapped.

Also there is a kit to put 1/2-ton disks on a 3/4-ton. I don't remember who makes it, but pick up up one of the magazines and I bet you'll find it advertized by someone.


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...