differential/drive shaft

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A

agrevbuzz

desert dodge
Joined
Jun 26, 2007
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I have a 7.25 differential in my '76 dart. I've been told if I go up to a 8.75 that it is a better differential. Also that I would have to shorten the drive shaft. What if I found a 8.75 on an a-body and also snagged the shaft from the same car. Will that work?
 
Yes, the driveline would have to be shortened 2.26" if you go to an 8 3/4 from the 7 1/4. You could use the driveline out of the car that had the 8 3/4 if, the car was the same wheel base as your Dart. Dart Sports, Dusters, A-body Barracudas and '73 down Valiants have a different wheel base than a "regular" Dart. Also the car couldn't have a 727 because they are different length than the 904, 3 speed manual and 833.



Chuck
 
how can i tell which tranny i have? I haven't done a lot with mopar. Mostly GM stuff in the past.
 
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