I fabricated a mounting system for my Rowan Replicars replica, the car came with an 8" Ford rear end and leaf springs.
I mounted the differential on a cross member that bolts to each side of the upper frame rail, I then used a series of heim rods to hold the differential in place and gave me some adjustment. I added brackets to the cross member that provide the shock mounts.
I also used a 1/4" plate on the bottom of the differential, heim rods connect that plate to the chassis at the front and rear. I also modified the leaf spring mount to have the correct angle for the control arms (level with the lower control arm diff pivot points).
This mod was quite a job, I had to pay special attention to pinion angle and the height of the differential so the drive shaft would have the correct angle.
