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Author Topic: How to identify rear axle ratio?  (Read 11156 times)

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scott_gunn

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How to identify rear axle ratio?
« on: 02/20/04 04:21 AM »

I'm purchasing a used Avalanche and I need to know how to tell which rear axle it has.  The salesman's word alone is not good enough for me (some of these guys don't know anything), so I want to see it for myself.

So, how do I tell just by looking?

Thanks,
Scott Gunn
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805engineer

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How to identify rear axle ratio?
« Reply #1 on: 02/20/04 04:49 AM »

Scott:

Look at sticker in glove box for three letter codes (RPO codes).  Find ones that begin with G (they are listed in alphabetical order).  GT4 is 3.73, GT5 is 4.10, and G80 is locking rear axle.  It's that simple!
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Hangman

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How to identify rear axle ratio?
« Reply #2 on: 02/20/04 05:26 AM »

Scott:

Look at sticker in glove box for three letter codes (RPO codes).  Find ones that begin with G (they are listed in alphabetical order).  GT4 is 3.73, GT5 is 4.10, and G80 is locking rear axle.  It's that simple!



Thanks for the info..I've wanted to know as well....Good question and answer.

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scott_gunn

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How to identify rear axle ratio?
« Reply #3 on: 02/20/04 05:30 AM »

Thanks!
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scott_gunn

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How to identify rear axle ratio?
« Reply #4 on: 02/24/04 03:13 PM »

Is there a place to find out what all of the codes mean?

Edit - I found it, nevermind.

http://www.gm-trucks.com/RPO_index.shtml
« Last Edit: 02/24/04 03:39 PM by scott_gunn »
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