Rear drum brakes

Dana67Dart said

That sounds like it is hitting the backing plate. I don't see how the lip the projects outword could do what you describe.

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dnicodemus12 said

Thanks guys! Great info. We bought Dart new in 74 from Tampa Dodge dealer. Front disc rear drum. Stamping on drums 11.090, made in Canada. Other stampings 80988-10, 55722, and 987. If I put a drum on with a lip at axle bore and tighten lug nuts, it takes the axle shaft end play out and locks up wheel. Acts like an axle shaft puller. That lip CANNOT be there. Tried 7 drums from different mfg. Shoes are 2 inch. This rear end has never been worked on either. All original. Maybe 72bluNblu has the answer.

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I agree with Dana, I’m betting you’ve been getting 11x2.5” drums. The deeper drum hits the backing plate before it bottoms out, and pulls the axle.

The axle flange offset is the same for all BBP drums, so, the backing plate offset has to be different for different widths. So the backing plate for an 11x2.5” drum has more offset than for an 11x2”. The 11x2’s are harder to find, and I would bet money most parts shops aren’t giving you a C-body or truck 11” drum, which is where most of the 11x2’s were used originally. If you aren’t careful it’s easy to get an 11x2.5”.