I've got an '05 F150 Lariat w/ a 6" Fabtech lift w/ 18" Helo Maxx 6 rims. Currently running the Nito Terra Grapplers and have gotten about 50k on them and now time for some new rubber.

Price point and size is about the same for the Grapplers compared to the Pro Comp Extreme AT's in the 35 x 12.5's. So I guess the big question is will I see a difference in performance one way or the other? Handling, gas mileage, etc. And I'm guessing that the 1/2" will not be that noticeable visually looking at the truck.

 

The only reason I would go with the terra grapplers over procomp is because the nittos are a little bit wider, which IMO looks better on a lifted truck.

 

I have the procomp xtreme A/t same size as you but i have 20", ill take a picture from the front and the back when i get home and let you see what they would look like on a 6 inch.

 

I have the ProComp XTerrain's on an 18 inch rim, not the Xtreme AT's which I don't like. So i'm gonna have to vote for the Nittos