hi guy's i just purchase the lift kit 6 inch from rough country and i want to know if i put 37x12.5x20 open country tire on stock rims , did they gonna rub ? or i need the 1/4 spacer they sell ? thnx for answer

my truck is 1500 ram sport 2011 q/c

 

Toyo doesn't make a 37x12.5x20, only a 37x13.5x20 and those will definetly not fit even with a 1/4" spacer because they're more like 14.25" wide. I have 35x12.5x20s on stock wheels with .25" spacers and those fit without rubbing

 

what is the biggest tires for the stock 20 x 9 laramie rims with a 4" lift? Spacers?

 

I have the 4" RC with 35x12.5x20 on stock rims w 1/4 spacers. They work, but I'd feel more comfortable with 1/2".