will this work with my 8-3/4?

Your gonna need 8 1/4 or 8 3/4 shock plates also new u-bolts.The 7 1/4 plates and bolts are to small.Hope this helps.

hey scott, thanks for the info! i figured i would need new u bolts for sure (mine are broken anyways)..as far as the shock plates go, do you have a part number for them or is there a certain year and model of car that i can go to the parts counter and ask for shock plates for? id like to try to get this done asap...finishing off the spring relo tommoro and want to get the rear all buttoned up and measure for wheels...thanks!