Originally Posted by Sniper
Originally Posted by cudaman1969
Originally Posted by Sniper
Originally Posted by dvw
It'll more than likely be fine. If it breaks? A B body 8 3/4 is a bolt in using a factory 727 Duster drive shaft. the 81/4 brake parts will bolt up as well.
Doug


Not really, at least not without new axle shafts. bolt pattern and flange offsets are different.

Ran an 8 1/4 behind a warm 360 and an A833 in my Diplomat for years. SG with P255/60R15 BFG's. No issues

Hmmm, the drums off my 73 8-1/4 are the same as the 68 b-body 8-3/4, same for the shoes and backing plates.


Ah fudge, I read it as an A body 8 3/4, not a B body one, you are correct there.


I think you are thinking of A body with 1 3/4" shoes. The bolt pattern of a F body and a B body are the same. The 66-70 B body axle is 3/4" wider overall. So 3/8" on each side. The driveshaft definitely works. So do the backing plates. Both are on my Volare currently. I have heard some 8 1/4 backing plate are missing the lower hole which can be drillled.
Doug