Be prepared to do the pinch weld modification at the very least. Because you will have tires about 3" taller than the stock 29.5 inches be ready to also change your gear ratios as your 3.7 V6 will really struggle under any kind of load! I was considering those same tires for my Commander but in the size 265/65R17 which would be a more reasonable choice for a V6 with a 2" lift and also being able to carry a full size spare underneath. You would more than likely still need to do the pinch weld mod.