A Body LARGE bolt pattern rear brakes

On ebay, there's a company selling A-Body rear axles with the 4.5" (large) bolt pattern. In the axle information it says they also have '73-up LBP brake drums that will allow you to keep your original
8.25" rear A-Body brake hardware (backing plates, shoes, etc.)

Does this mean that if you simply replace the axles with ebay ones with the new larger bolt pattern flanges, you can use any '73-up large bolt pattern brake drums from an A-Body car?

That would be ideal, if it's true. For some reason, I thought you needed the B-Body brakes to go with the LBP axles, but now that I think about it, the brake drums off any '73-up Duster, or Dart with the large bolt pattern and an 8.25" rear should work, right?

Any info will be appreciated.

Bill