Question about 2003 Chevrolet Silverado 2500HD

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I need to change the rear end and front end gears in my 2500 hd. I show that i have the 3.73 gear and I want to go to a better milage gear. 3.33 or 2.87 gear. Does anyone have a step by step guide for doing this

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Also the eprom will have to be replaced with a matching one to whatever ratio you install

Changing these gears you will need now than advice. Get a Haynes Manual at auto zone for yourself
They will have instructions with a lot of pictures to go by

Posted on May 31, 2010

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