That tire is 11.6" wide and 34" tall. Here's one of the many websites you can use to calculate tire sizes.

http://www.discounttiredirect.com/di...foTireMath.jsp

 

according to nitto website for the terra grapplers... the size specs for a 295/60/r20 is 12.36 width and 34.5 diameter. I didnt know this until after i bought them. so according to the nitto website its saying the tire specs are bigger than the tire size calculator.

 

well if you already got a 2" leveling kit on your truck i don't think you should have a problem with them fitting. i got 285/65/R20 on mine without it leveled and they barely fit. but i also haven't had any rubbing issues. im sure if i leveled my truck they would fit alot better. my tires would be about the same hieght as yours just not as wide.

and like hammer said you don't want to crank your wheel 100% either i had to replace my steering pump from doing that.