Factory BBP on 7.25 axle

I don't know the particulars, I just know Chrysler made um. Also as luck would have it, you cannot make a LBP 7 1/4 from a SBP 7 1/4 as the housings axles and backing plates between the two are all different. I know. Stupid.

Yea, I found that out yesterday in my conversation at Carlisle. I'm hoping they were put on Aspen and Volare's. There are a lot more of them in relatively un-picked condition in eastern PA junkyards than Dusters and Darts.