I recently picked up a set of Goodyear military tires on Ebay real cheap. They are 36x12.50 bias plys. Turns out two of them are out of round (I think). They wobble a bit but it isn't that bad except at 35 mph. As long as I am driving faster or slower than that it is okay but usually just a few seconds of cruising at 35 and it starts the "death wobble". Whole truck starts jumping, tires start flopping, and the only way to make it quit is to slow to almost a complete stop. The guys at Scwab were telling me I could get them shaved and have em trued up again. Anybody done this? These tires are slightly used but they still have around 90% of tread life. I'm just hesitant to go shaving off decent tread when I don't really drive the truck that much on the road. One other thing about these tires is that if they get round when aired up. I have em at 12 psi cold and still don't have only like 80" of the width of the tire in contact with the ground. I haven't driven my blazer much yet with em but when I have I try to keep an eye on the tires and make sure they are heating up too much. Doesn't seem to be a problem. What do you guys think about running the tire pressure so low?