The LX450 I just purchased has Pro Comp Extreme AT currently on it but I think they have seen better days, they look a little dry rotted and when driving on them, at slow speeds I feel like I am going over cobblestone road, I don't think they wore correctly. I am looking at one of these two tires, with the current rebates at discount tire direct, I can get the Grabbers for about $700 shipped for 4 or the Falkens for about $640 shipped. My concern with the Falkens is they are almost 15 lbs heavier per tire which seems pretty significant for a tire the same size, plus apparently the tread depth is not as deep on the outside of the tires versus the inside. I had them on my Jeep Grand Cherokee a couple years ago but they were only 31s and only had the tires for about 30k miles, seemed like good tires but the 60 lbs of unsprung weight has me concerned, not like this truck needs anything else to get horrible gas mileage lol. BTW I am looking at 315/75r16s.