While it is true that one can have the engine and trans controller reprogrammed to correct an inaccurate VSS, reprogramming may void the truck's powertrain warranty, so.I hope Goodyear decides to make the MT/R in the OE ZR2 size.Using tougher than steel Dupont Kevlar in the sidewall, the Goodyear Wrangler MT/R is engineered to provide outstanding off-road performance for drivers of pickups and sport utility vehicles. In any event, going to taller tires indroduces inaccracty to the VSS signal which affects your speedometer, transmission shifting and ABS brake action. The off-road performance is an issue with me, but I'm careful about going to taller tires because that changes the trucks effective final drive ratios which may or may not be desirable. The appearance issue is subjective and not really of prime importance to me. Their initial response was: consider a larger size as they may improve appearance and off-road performance. In fact, I've been having an email discussion with people at Goodyear's Communications Department trying to find out if the MT/R will soon be offered in LT265/65R17. Only problem is, GY is not making it in the OE Colorado ZR2 size. Kevlar is a badass tire and perhaps one of the best off-road tires from a major tire company. I bet with even just a 3.73 you could get back to stock mileage. The 3.42 it comes with stock is not a great choice for any tire size bigger than stock. The gearing in the rear plays a part in mileage once you start stepping up the tire size too. The larger diam and more aggressive tread is just harder for the truck to push down the road. Some of this has to do with the larger diam tire, I am going farther than the computer thinks I am going but that is minimal. My DIC shows my mileage is way down, before the tire change I was averaging 17ish mpg, post tire upgrade I am averaging 13ish mpg. Expect the MTR's will be night and day better. I still need to get them out in some mud, I know how the Duratac's were and was not a big fan of them in the Mud department. When I try to take off from a stop they spin pretty easy and are very easy to get them to bark when braking hard, just not as much rubber in contact with the pavement. On the pavement they are not as good as the Duratrac's, both in accelerating traction and stopping traction. I am loving them so far, they are a bit louder than the Duratrac's and they allow for just a bit of wander, nothing I did not expect.įrom a traction standpoint, in the dirt they grab like a mule, unreal actually. They were great on the road, can't have it all I guess, I would rather have them be great in mud and rock and ok on the road than the other way around. I had Duratracs on my Jeep and liked them but they just were not very good in the mud and just ok in the rocks. Not real concerned about the noise, its an off-road truck, they can't be as loud as my 38" super swampers were, those things were crazy loud and took a couple miles to get round again after sitting over night. I hope I end up liking them as I will be committed for a while, will be doing 5 tire rotation so expect them to last a long time. I've been hearing a lot of good things about Cooper Discoverer STT Pros, and I've never run a Cooper tire so that will likely be my next choice once I can find a wheel i like. Ended up with a slipped belt on one, expensive too! Ironically i ended up going with Duratracs. I ran MTR/K's on my JK Rubicon (35's) and they were awesome offroad, but were noisy as hell on the highway after about 10K miles and hard to balance they are asymmetrical so they tend to wear unevenly if you rotate often and criss-cross.
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