7.25" A-Body LBP rear axles ever offered with 9" drums?

No 9" B-body brakes. Didn't think they made a B-body 7 1/4 rear either. The width of the 9" brake axle housing is unique so the shafts from a 10" brake axle will not fit the 9" axle. The only reasonable way to convert to BBP is to replace the rear axle assembly with a 73-later BBP axle assembly. A 65-72 8 3/4 can be used but requires custom BBP shafts.

All 9" brakes had the SBP until the end in 76.