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Rear End Decode

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Old Feb 17, 2016 | 08:50 PM
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raylag64
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Default Rear End Decode

I have what I believe is an early seventies rear end (mostly because of the larger yoke) in my 64. I know it is a 3.08 POSI because I checked by the number of turns before I put everything together. Drove it for about 7 miles this past fall, and I know it's geared too high for my liking. I would like to re-gear it to 3.36, but want to be sure I buy the right gears. I can't see the case # from under the car, but what I can see is:
Bottom of case 04(or A)173
Side of case F117
Cover PN 3871375
If someone could decode this I would really appreciate it.

Thanks,
Ray
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Old Feb 17, 2016 | 10:26 PM
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I think there should be a two or three digit letter code Identifying it.

Ecklers and lots of other sites have a chart you can look at

Here is one....
http://corvettec3.ca/axle.htm


Sorry, Just reread your post. If you are wanting to just buy gears, 63-79 are the same. The only time I think anything changes if you are trying to put a 4 series gear on a 3 series carrier or vice-versa,

Last edited by SledgeHammer 2.0; Feb 17, 2016 at 10:36 PM.
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