73-87 Chevy _ GMC Trucks > Brakes, Frame, Steering & Suspension

Rear end swap

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Aitch:
I want to put a disc rear in my 77 C10 short step side. I found a 85 C10 with disc brakes. Will it fit my 77?

Shifty:
Physically it will, though there will be hydraulic changes you'll need to make to function correctly, as well as some parking brake mods.

Captkaos:
It would be easier to just swap out drums vs disc off the donor.   No C10 ever came with disc from the factory so it would be an aftermarket replacement/update.
1977 will have a 12 bolt vs the 85 with a 10bolt (8.5") and has a different size Yoke so total swap would require a hybrid u-joint. 

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