rear disc from grand cherokee on a 8 3/4

I went and got jeep Cherokee rear disks over the weekend. I have not yet cut down the axle so there is room to make mods.
I did a quick bolt-up and it appears in my situation that the rotor is offset to the outside, and the bracket needs to move away from the centerline of the car.
Currently it is a B body axle tube with the factory adjuster and tapered bearings.
I will re-assemble the rear end with the pumpkin and get precise measurements, and pics for all to see. This will be with the mounting plate mounted between the axle tube flange and the exterior axle seal retainer.
By the way both of my axles are the same length is there a left or right orientation for the one with the adjuster?
Andrew