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: What size is my 10-bolt 2.73? IrateN8 Dec 19th, 99, 5:59 PM 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..... ------------------ IrateN8 Northern California 1970 Malibu Sport Coupe, Proudly USA (TX) Built Gen-X Member SSteve L Dec 19th, 99, 6:10 PM I believe most 10 bolts 72 and older were 8.2" and 73 up were 8.5". ------------------ Steve 72 Chevelle SS402/4sp SoCalRat Dec 19th, 99, 6:16 PM 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. ------------------ Jay W. In-the-works 67 Malibu surferwagons.8m.com (http://surferwagons.8m.com) [This message has been edited by SoCalRat (edited 12-19-1999).] FIG Dec 20th, 99, 2:02 PM 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 ------------------ MCC member #256 http://www.clark.net/pub/chevelle/mcc.htm | ||