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Re-gearing 2020 HD WT

Viktor Stolyarchuk
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2011Chevy Enthusiast

2011Chevy

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If it is possible to do, you may want to have a dealer reprogram the truck for the largest stock tire size which is 275/65-20 (34”) before doing a regear.  This could possibly alter shift points and other computer controlled elements of the driveline in a positive way.  Your tires are not significantly taller than what comes on the 20” wheels, although a good bit wider.  

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