GMC Sierra tire size

Ryan542

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Hello all...pretty new at searching for info on a forum but I need some so here goes...i have a 2018 gmc sierra long bed crew cab and I want to put the largest tire on it I can with the stock wheels. Currently I'm running the stock set up 275/55 R 20 's. I was thinking of a 305 55 20 but wasn't sure if rubbing would be an issue.... i want that quazi aggressive look without lifting the truck - actually minimizing alterations altogether. Any info would be extremely appreciated!! Thanks
 
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