Uneven tire wear on front or rear tires is caused by a number of different factors. Aggressive driving, poor alignment, imbalanced tires, rim damage or suspension damage all cause the tires to wear unevenly regardless of the tire's location. If you have a bad strut on the rear of your vehicle, that tire will wear out quicker than the other tires. The important thing is to monitor your vehicle so that you identify uneven wear on your tires before it becomes a problem. Limiting the damage just requires rotating the tires.
Raise up the vehicle's rear end and place a jack stand under the tire. Remove the tire using the lug wrench to remove the lug nuts. Lower the jack while keeping the axle elevated with the jack stand. This wheel will remain raised through the whole process.
Raise the front driver's side and replace that tire with the tire from the rear driver's side. Reattach the lug nuts and tighten. Lower that wheel to the ground and double check the lug nuts for tightness. Repeat this for the rear passenger's side, placing the old front driver's side tire onto the passenger rear. Repeat moving the old passenger's rear tire to the passenger front location. Move the old passenger's front tire to the driver's rear location, attach properly and remove the jack stand. Lower the whole vehicle back to the ground.
Identify the cause of the damaged rear tires. Consult a tire shop to identify what caused the damage and have it repaired immediately. The damage done to the old rear tires will slowly even out after being placed on the front, where no damage exists. If the damage to the old rear tires is extensive, you may have to replace them.
