Check out post 82 from here.
DIY BrakesAnyhow, I looked up the part number on the rotors. They are late model GM rear rotors that you can find on 2000 and newer trucks and 2003 and newer vans.
The calipers are 80's Chevy K10.
As far as bearings go. Your stock ones are all you'll be able to get.
Shimming, etc... Can't tell you. You may have to put an extra washer here or there to get things to line up. I don't believe they use a spacer.
Guys have been converting the Huck to Bendix brakes on these trucks for years. All that was required was drilling the holes out to 1/2"
https://www.stovebolt.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=953963https://www.jalopyjournal.com/forum/threads/huck-to-bendix-brakes-50-chevy-truck.670598/
