I rotated the original Goodyears every 11,000 to 12,000 miles and had to buy six new ones at 49,872. It was costing me $25 each time because I don't have access to a lift and putting a 7000 lb truck on jackstands on a gravel driveway wouldn't be good for my heart. I didn't rotate my Michelins ever and had to replace the rears at 110, 580 and at 128,000+ I think the fronts will last me another 10,000. I run 60 psi in the fronts and 45 in the rear when towing a 13,000 lb 5er, 40 when empty. My view is don't waste your time and money on rotation.