1988 D100 Rear brake conversion. HELP!

I have a 1988 D100 RWD and i'm looking to convert the rear drum brakes to a disc brake set up. It's the 8 1/4 inch diff and i'm having trouble finding a kit that would work/fit on my vehicle. I'm hoping someone on here can help me out or maybe someone is having the same issue.
Thanks!!
Author: bthomps