Old 08-01-2022, 05:13 PM
myam myam is offline
Join Date: Jun 2007
Location: Oakfield,Wisconsin
Posts: 77
Default stock rearend

What is the type of rearend came stock on 75 GA ?

Old 08-02-2022, 09:59 AM
sport coupe sport coupe is offline
Senior Chief
Join Date: Nov 2006
Location: Brookfield, IL
Posts: 344
Default Stock rearend

Attaching a couple of diagrams. Learned something new without looking for the axel code. From my build sheet. The options description shows a GM8 AXL 2.56 ratio. Looked up the above build sheet codes on code 11 it shows *CH. Matched to an 850 ring gear in 2.56 ratio positraction.
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Old 08-02-2022, 11:37 AM
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camerjeff camerjeff is offline
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Join Date: Dec 2004
Location: Belleville , Mi
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I was going to say it should be a 8.5" axle, but lists that sport coupe attached pretty much covers it.

Jeff R
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Old 08-03-2022, 02:17 PM
myam myam is offline
Join Date: Jun 2007
Location: Oakfield,Wisconsin
Posts: 77
Cool rear end

well i'm a michigan car so it's 2.56


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