Biggest Tire Size!

[Smokediver67]

Hey all! First time Ram owner, first time diesel owner, major newbie here. Just bought a 17’ 2500 Tradesman. I want to do a level kit and put on the biggest size tires I can without rubbing. Have to stick with stock wheels at the moment. When the new tires need replacing I’ll change wheels then. I really want the nitto trail grapplers!

 

[AH64ID]

I would say a 35x12.50R18 would fit without rubbing, based on just running full HD chains on my truck for well over 100 miles at 5-10 mph, full lock to lock steering and suspension cycling often around hairpin off camber corners. Minor, and I mean MINOR, rubbing on the anti-sway bar happened occasionally but not always as it does move side to side slightly. The chains made my OE 275/70R18's about a 35x12" tire.

 

[AEdelheit]

FYI the leveling kit does nothing for tire clearance, I have had 37x13.5 on a stock truck (same trimming required as any suspension with stock bump stop travel). Wheel off set is what will make or break tire fitment and run, here is a good write up with accurate info https://www.thurenfabrication.com/tech/tire-and-wheel-fitment.html