BBP 7 1/4 axle shafts

That might be what you found under a 75 model.
Got 7/16 left hand lug studs too ? LOL
Good luck

I'm pretty sure the 7 1/4 rear in my car is original. I'm having a hard time picturing the old lady I got it from swapping rear ends.

...and I didn't say the rear in the car now was lbp/sg, that's what I'm building, or trying to build if I can get the parts together.

I just found out I can get an 8 1/4 sg, complete. Should I go that route instead?