same boat as you. i put new toyo all terrain at extremes 35 inch on last year. i have a slight wobble/shake around 35 mph. i had the tires balanced three time and three different shops. changed out my tranny mount. changed out my u-joints, had my drive shaft balanced. mind you, my front end is tight- all after market front end components, steering brace, don thuren track bar, new ball joints, updated steering, new shocks, ball joints, etc,etc. finally contacted toyo. they replaced two of the four tires. so me and the shop had to guess what two to replace. it was a crap shoot since each tire had at least 5.5 ounce of wheel weight, all the way up to 7.5 ounces. ( always read how toyos took little weight and were always so round) well, i still have the wobble- i guess we missed a tire! i believe this will be my last set of toyos.