i was recently offered a rearend out of a 71 cutlass, does anyone know whether these normally came with a 7.5 or 8.5 10 bolt ? if they came with both is there any way to tell which is which without removing the differential cover or finding the numbers on it ?
Help! is it 7.5 or 8.5, will it fit in my car?
- Thread starter lesbaldridge
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yeah, the original was kind of long and drawn out.. LOL. sorry about that. i shortened it up. i have been doing some research and according to what i can find all cutlass 10bolts from 71 to 76 were 8.5" rears. id like to have someone who knows there cuttys verify that though. also, from what i can tell, it will with some slight modifications. again, would like to hear from someone more experienced with this than me.
can you take a picture of the center housing section, where the bolts are, yes there is a way to tell... and here ya go
http://www.maliburacing.com/rearend_guide.html
http://www.maliburacing.com/rearend_guide.html
I believe that was the 8.2 rear and the olds 12 bolt rears are junk..stay away fromn them....You would be better off looking for the chevy-pontIac rears......they were better....the 8.2 rears are stronger then the 7.5 rears, but not near as strong as the 8.5 or chevy 12 bolt 8.875 rears...Then again, check the rear, if any luck the original has been replaced with more muscle 🙂High Roller said:
i think im going to just wait and try to find an 8.5 from a 80's g body that will just bolt in. i have a little time before im going to need it.
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