Quote:
Originally Posted by shaks 442 clone
i have a 12 bolt olds rearend im in the process of taking it down to bare metal and painting it but before that i want to upgrade the 2.73 gears in there at the moment
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Which "12 bolt" axle do you have? 442s could have come with either the traditional Chevy 12 bolt or the Type O. The Chevy axle was mainly used in cars built in Canada and can be identified by an upsidedown "V" stamped into the back cover. This axle used C-clips to retain the shafts and an 8.875" ring gear held on by 12 bolts.
The Type O has a smooth rear cover and the axle shafts are retained at the outboard bearings. The bad news is that this "12 bolt" is actually only a 10 bolt since the 8.5" ring gear is held to the carrier with 10 bolts. These axles were only used in 67-70 Cutlii and parts can be hard to get. There are no "cheap" gears. One of the best sources is these guys:
http://www.drivetrainspecialists.com...ile/index.html