are there any threads about putting buick drums on a ford nine inch rear? anybody done it? i have a pair of 40 ford backing plates that i was looking at modifying to fit the nine inch bearing ends. that seems simple enough but then i got concerned about the drum being in the correct location. if it all ends up working out, do i still need to remove the outer edge on the drum like i do when using the drums on 40 backing plates in the normal front axle application. or would it be better to modify a set of the buick backing plates that came with the drums and have self-energizing brakes to start with? i never saw a set of stock buick backing plates so i wouldn't know how they look compared to the 40 ford plates. the 40 backing plates are handsome, especially when drilled.