I am pretty sure that the 10" LBP (4.5"D bolt circle) rear drums are a bit wider, something like 2" vs 1.75", but check rockauto's listings. I say this because I bought a "hardware kit" from Autozone for a ~73 Dart (oldest they had) and had to re-use the shoe pins on my 65 Dart because those in the bag were too long. It is OK if the "shoe contact width" is longer in the LPB drums. What matters is if the drum will hit the backing plate, and my guess is it would unless you trim the lip. The later is easier on SBP front drums since the bolt holes are already correct.