Jeep rear discs on an 8 3/4 axle solution

the only way I can think of to do a small bolt rar disc setup it to us some type of foriegn car or other small car rotor and have them machined aand drilled to match. then yu could fab a caliper bracket and weld it to your housing (depending on what type of caliper you choose). the canter register of the rotor would have to be small enough that it could be machined out to the size of the SBP mopar axle shaft.