tire wear

[Wes Harden]

I have suspected the ball joints and have inspected them several times, I may just do them. Tires are Goodyear AS with Kevlar 245 75r16. Next set will be at least 265 70r16 of maybe a different brand

 

[imiceman44]

I always try to run 50+ in our 800 Burb. Factory calls for 50 front, 80 rear iirc. While the tires do wear fine at lower psi, they do certainly wear faster.

I can say with certainty though that if the ball joints are even a little bit worn, front tire wear tends to get very choppy. Especially if it's a cheap and narrow M/T tire with a soft compound. A good quality tire seems to wear better under the same circumstances.

I bought new tires 2 years ago and the tire shop put 70 psi in them.
It rode like a dump truck.
I brought them down to 50 psi and drove it 35k most of the times loaded a couple of thousand lbs.
The wore in the middle an extra 1/4"
The were Mickey Thompson AT tires great tires and they didn't make it to the 50 k they should have.
I am not trusting a tire shop or a sticker on a door.
Each tire is getting the chalk test from now on.
I don't have money to waste.
And yes it doesn't take much to cause the vibration and that destroys the tread