I've not tried every possible combination, so perhaps there is an approach that uses the truck backing plates.

When I did this on my own truck 30 years ago I had to use the car backing plates and create some spacers to make it all fit right.

I believe when I did mine I used the truck inner bearing and the car outer bearing. You might be able to find bearings that will make the '57 hubs and drums work. Take measurements and go to your local bearing supply house and see what they can provide.


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...