10 inch rear drums ????

7 1/4" or 8 3/4" rear end? Both have 10" SBP drums, but they are different.

Drums are the same.

the 8 3/4 drums look different, they have a flair on the back
but the 7 1/4 drums fit and work just fine,

All 69 back drums didn't have bells. 1970 through 1972 had bells. There could have been some carry over. Engine didn't matter as a /6 could be ordered with 10" brakes.

$150?!?!?!?!?!?!?!?
that guy is smoking CRACK!!!!!!

$150.00 for a pair isn't a bad price for something that is no longer available and wasn't made in China.