Thinking about upgrading my stock 275x65x18 tires and rims to 305x55x20 tires and rims. Will this change how the truck rides. Will it be alot stiffer and bumpier or just a little.

Thx, Pete

 

Depends on a lot of varibles you didn't mention, like the exact tire. Not just the size, but the load range. ALso, are your stock tires P or LT rated?

 

tires are the stock tires and I'm looking at the terra grapplers

 

Anytime you upgrade from stock P rated tires to an LT tire which is usually much heavier and with stiffer sidewall's they will ride a little rougher. The LT's are a lot stronger, have better resistance to cut's and flat's and most importantly look a lot better! I usually put LT tires on my truck's and couldn't be happier.