...just came across the articles Ehrenberg wrote a while ago using rear discs from an 03-07 Jeep Liberty or 03-06 Wrangler - this is my leading option for 'rear discs on an 8-3/4' under my Demon. I'd kinda like the main bracket not milled down so much...but I haven't seen any negative reviews about strength so I guess it's still strong enough. Still...the cost delta between going with this 'JY-parts' version and a brand new bolt-up $1000 version from Wilwood may not be that big to make the juice worth the squeeze.

Pt 1 - https://www.moparaction.com/2020/07/04/take-a-break/

Pt 2 - https://www.moparaction.com/2020/07/05/rear-disc-brakes-part-2/

Wilwood setup - https://www.summitracing.com/parts/wil-140-11395