Rear disc conversion kit

[Erik the Awful]

These fit; https://www.summitracing.com/search.../disc-brake-kits/position/rear/drivetrain/rwd

If you notice, all those kits come with a new master cylinder. That's the main thing I worry about when people do rear disc swaps on their trucks. The factory setup isn't balanced for rear discs.

 

[Schurkey]

...and the new master cylinder probably isn't compatible with the original front (low-drag, JN/JB3, 5, 6) calipers.