F body rear leaf spring mounts

Thanks for all the help with this problem .What I ended up doing is using mid 60's 8 3/4 bottom plates and u bolts.I made 8 1/4 in shims to take up the distance between the bolts and the axle housing to keep it tight. After tightening the bolts down those shims were tight in place and I put a small weld on each one to the pad on the rear to make sure they stay put.I used shocks from an old 66 valiant I had parted out and used a big flat washer to take up that step in the bottom locating bolt to the plate. The only parts I bought were the two washers at a cost of around 5 dollars and it's back in service and working as it should.Here are some photos of what I had,what I now have , and what came out

IMG_5382.JPG

IMG_5392.JPG

IMG_5397.JPG