I recently wore out a set of tires on the front of my 02 dodge, It was aligned when they were installed in may. Tires wore out on the outside, but not on the inside. There is some mild cupping , but inside has no noticable wear. The truck tracks strait as an arrow, and under hard breaking there is no pulling to either side. Went back to the alignment shop and they said it was dead on to factory specks [ Hunter system] Any Ideas, ?????

 

Hey 24 hrs and no responce.

 

No answer, but in my 00 I have the same issue, got alignment specs, they are good, but uneven wear on front tires. Bad ball joints?

 

With outside wear my first assumption would be that the wheels are toed in a bit. I should also mention that strangely, some brands of tire are more prone to showing this type of wear than others. It has mostly to do with cornering. Frequent rotations help of course, but without seeing the alignment printout (if there is one), or knowing their machine is in calibration, I can't say much else.

 

how long were these tires in their locations to show that type of wear? Mine start to show slight cupping after about 8,000 miles so i try to rotate every other oil change or so. Even for these trucks having solid front axles, the way they're setup, they still wear odd. I think it is having to do with the fact that the hubs are engaged all the time, maybe locking hubs allowing JUST the wheel to spin seem to have better tire wear/ more true tracking without having to spin the rest of the axle during normal operation. Idk i'm just throwing this idea out there but it makes sense to me. Good luck
TNutcher

 

Outer edge ware on BOTH sides would be toe issue. We usually set them to around .08 Deg where the factory specs call for .16 - .20 Deg. If its just the outer on the right side its due to that wheel holding vehicle on the road due to road crown. NEED TO ROTATE EVERY OIL CHANGE OR 5000 MILES and air pressure must be checked. I usually set the fronts around 65-70psi. As far as choppy that would be worn shocks or lack of rotation both can contribute to this.

 

Rotation, or lack thereof, is the killer on fronts.

Being outer wear on both, I would tend to say you are toed out just a little too much.

RF outer wears fastest, and will cause all kinds of grief if not rotated properly or often enough.

Strange wear on the inside of one tire more than another, generally indicates a rear axle out of line, causing it to push in one direction or the other. See it more on highway trucks than anywhere else.

good luck

 

What would cause cupping on the front inside tires? I rotate, but they still eventually cup. It has been aligned.

 

Shocks cause cupping. Low air pressure causes cupping also.

 

Great diagram for tire wear. http://www.abbsrytire.com/diagramtire.htm

 

Shocks are new, air pressure is good.

 

MIne was aligned twice and dead on according to the tech. The third time in they had gotten the machine recalibrated and my alignment was way off. They re aligned it and it has been good for about 2 years now.

Your problem sounds like excessive toe in. They steer better with a small amount of toe but a lot will wear out the outside edges like you are seeing.

Luck.

Kurt

 

You would be well advised to have alignment set at near 0 toe in. Outside wear on both is definite indication of excess toe in for a individual unit. Just because the alignment shop says it's in the GREEN don't make it correct. Many techs do a better job with strings than others do with a $30,000.00 piece of equipment. Over size tires and agressive tread, or incorrect wheel offset will always make wear worse. Cupping can be affected by toe in.
I believe this is posted in wrong place for best results.

 

Strings??? How are strings used in this process? Sounds like something anyone can do.

 

are your ball joints ok? they can also cause tire wear issues