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DHart's avatar
DHart
Explorer
Apr 19, 2015

New Sierra Denali HD 2500 - upsizing stock tires/wheels?

We just purchased a 2015 Sierra Denali HD 2500 truck with Duramax/Allison. Love the truck! It is our daily driver AND we will be towing a 2016 Airstream 30' Flying Cloud. Airstream in this photo is...
ata3001's avatar
ata3001
Explorer
Apr 19, 2015
By going with a larger wheel/tire you will be effectively raising your gear ratio. 3.73 may become more like 3.42 or 4.10 may become more like 3.73. Trucks computer may need reprogramming as well. Why change? Looks awesome as it is. Unless it's a macho thing....

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