Axle codes.
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Senior User
Joined: Aug 2002
Posts: 200
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From: Argyle USA
Axle codes.
I'm looking to find another 9" out of a '73-79 truck (are these the only years that are a direct bolt in for my '79?) at the junkyard so I can have a low gear when I want to go to the track and still keep my 2.75 for when I drive on the street. The rear axles really don't take long to swap so I think I'm going to do this instead of just getting a gear somewhere in the middle for all the time.
Heres my question:
Can I find a list of the axle codes for '73-79 trucks anywhere so I know their gear ratio by looking at the door tag? I know we have a decoder online but I'd rather have a list I can just take with me.
Nick
Heres my question:
Can I find a list of the axle codes for '73-79 trucks anywhere so I know their gear ratio by looking at the door tag? I know we have a decoder online but I'd rather have a list I can just take with me.
Nick
Posting Guru
Joined: Mar 2003
Posts: 1,253
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From: spartanburg, SC
the tag on the axle is easyer to decode.
the bottom left numbers on the tag.(bottom line next to the bolt)
2.75 = 2.75 open
2L75 = 2.75 LSD
3.00 = 3.00 open
3L00 = 3.00 LSD
see the pattern.
the bottom left numbers on the tag.(bottom line next to the bolt)
2.75 = 2.75 open
2L75 = 2.75 LSD
3.00 = 3.00 open
3L00 = 3.00 LSD
see the pattern.
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Senior User
Joined: Aug 2002
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From: Argyle USA
Awsome, that answered my next question. I still need the door codes as the trucks I'm looking at still have the axle under them and they're not on pavement so I'd like to have an idea of what it has without crawling all under it.
Anyone know if any other years fit or if any years are better than others?
Thank you,
Nick
Anyone know if any other years fit or if any years are better than others?
Thank you,
Nick
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From: Louisville,Ky.
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Joined: Feb 2004
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From: Castalia, Ohio
Just out of curiosity, since you have a 9 inch rear end, and the center (pig) is removable, wouldn't it be easier to swap the pig out rather than do a complete rear axle swap?
Just wondering.
Just wondering.
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Senior User
Joined: Mar 2004
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From: Austin, Tx
How do can you tell the difference between a 9" and anything else? I would like to get me a limited slip for my '74.
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