GM makes a rear that is called a 14-bolt. If you have that rear a posi is available for it. There are multiple versions of that rear available, and pictures might help...


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...