I have done some research and see a lot of different answers to this question. I am going to purchase new tires and would really like to move up from the weak 225/75/15. I have not done the lift and still have the stock rims. I am planning on doing the lift later on, but for now it is on hold. My truck is a 89 SWB 2.6 liter. I do drive this vehicle about 50 miles a day, but do go into the woods some also. No real mudding, not until I get me another vehicle.