Rear wheels/tires for 72 Demon

Thanks for the info, can I ask a dumb question? How do I know if I’ve got sbp or bbp? I’ve got an 8 3/4,

View attachment 1715198512

BBP is 5x4.5", SBP is 5x4". You can measure it pretty easily

tech-boltcircle.gif

In 1972 all the A-bodies were SBP from the factory, so, if your rear axle is stock and the axles haven't been upgraded it's SBP.