[IrateN8]

I see posts about 8.2 and 8.5 inch and I am not sure of my own. I have a 70 Malibu with axle code CCP which is a 2.73:1 ratio... but what size is it? An 8.5 or something? Thanks.....

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IrateN8
Northern California
1970 Malibu Sport Coupe, Proudly USA (TX) Built
Gen-X Member

 

[SSteve L]

I believe most 10 bolts 72 and older were 8.2" and 73 up were 8.5".

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Steve

72 Chevelle SS402/4sp

 

[SoCalRat]

I am not sure what size you have. Camaros & Novas had 8.2 inch ring-gears in 1970. In 71, they converted to 8.5in. I'm not sure about Chevelles. My 67 has a 8.2 inch 10 bolt. They are MUCH weaker than the 8.5 10 bolts. An easy way to inspect is to take off the cover & look at the ring-gear bolts. If the head of the bolt needs a 11/16-inch wrench or socket, then it's an 8.5 inch. If 9/16-inch, 8.2-inch. 8.5 gear bolts ar lefthand threads also.

Oh, and the smallest size 8.5-inch 10 bolt was 2.73 so don't count yourself out yet. You never know if someone might have swapped rears either.
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Jay W.
In-the-works 67 Malibu
surferwagons.8m.com




[This message has been edited by SoCalRat (edited 12-19-1999).]

 

[FIG]

OK I have seen a lot of 10 bolt rears and have yet to come across a 72 or earlier with a chevy 8.5 rear. All that I have are 8.2's. If I had to guess yours will be a 8.2.

later
J.J. Fig

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MCC member #256
http://www.clark.net/pub/chevelle/mcc.htm