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Silverado_zach

How To Identify Type Of Differential

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I recently bought a used 2004 2500HD Silverado 4x4, with the 4.10 gears and am trying to find out if I have locking front and/or rear differentials. If any one has any info on how to identify the type please let me in on the secret.

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RPO codes are on a sticker in the glove box. G80 is the RPO Code for Differential, locking, heavy-duty, rear.

 

RPO Codes

 

Chris

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The front diff is open. If the G80 code is found on the sticker in the glove box, then the rear diff would be a locker. These trucks don't have limited slip anymore. When the rear locks, it really locks...

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Open being the opposite of locking...It has no limited slip or posi-trac.

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