The tires fit GREAT. No bulging at all. In fact, in the specs from Toyota they say from OEM that you can fit 305/50/20 on the carved alloys. I got it the fitment info from sparks toyota. The wheels I ordered through local dealer and I negiotiated them into the purchase of the truck. I got the best deals on tires from our local tire shop. Tire Barn. I know the manager well, and he cut me a deal on the Nitto's. I got the Nitto's for $185 installed per tire, and they are filled with Nitrogen too!