what rear end and gear ratio would my truck have stock?

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Dec 16, 2009 | 11:57 AM

Old International

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Junior Member

Joined: Dec 2009

Posts: 13

what rear end and gear ratio would my truck have stock?

03 silverado 2500 HD crew cab with the 6 liter vortec

its suppose to have the "tow package" and im wondering what the gear ratio is

Dec 16, 2009 | 03:02 PM

GMCSierraFan

Administrator

Joined: Feb 2009

Posts: 1,558

From: Midwest

Probably 3:73 or 4:10. Check the codes in your glove box. I beleive that 3:73 is GT4 and 4:10 will be something similar

Dec 17, 2009 | 07:12 AM

bad2006z71

Senior Member

Joined: Jan 2008

Posts: 322

From:

you will have 4.10's GT5 is the Rpo code in the glove box

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