I am running 37 12.50 17 trail grapplers on my JLU with Mopar 2" lift. I have a pretty significant pull to the left not too bad under 45 mph but the faster I go the worse it gets. I took to the dealer and I have had the alignment checked twice and vehicle inspected for any suspension issues both times everything checks out ok. I swapped front tires left to right, rear tires left to right, front tires to rear and then swapped left to right again front and rear, I also put my spare on at each corner and always have a pull to the left. Is there anything else to check that could cause a pull to the left. I contacted Nitto and they said they haven't heard of any issues with these tires having a pull to the left and recommend I go somewhere to have warranty inspection done. Anyone have any ideas or have heard of Trail Grapplers pulling left?