Hi, I went from a 7.25 rear to a 8.75. I was wondering if anyone has done this and knows the correct driveshaft length when coming from an a-904. Also, is the pinion angle something that is built into the housing, or something that is adjusted with shims between the spring perches? I remember seeing something about it, possibly in a topic or a Mopar Muscle article. The rear I have is supposedly out of a 68 Dart so I don't have to change anything to mount it up.

use the search feature please many posts

And yes you will have to change something the u-bolts are different.

Don't forget the shock plates

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65 Dart station wagon slant 6 - now under construction
47 Dodge Custom 4 Door sedan
87 D100 Short Bed slant 6

Retired USAF 1966-1986
Retired US Postal Service 2004-2014

shorten by some where between 1.75 and 2.25. you will find posts supporting each measurement.