Use spare or buy new tires?

I would likely just buy 3 and use the best old one for a spare. That way you don't end up with a UV damaged spare eventually.

Every second lug worn is normally a balance issue. It can be called 'scalloped'.

Mike

86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's

snipped-for-privacy@yahoo.com wrote:

definately weak shock absorbers and balancing. Also, I know this is a problem that shows up on mud tires quicker than other tires when ran on the street. Especially on BFG MUD'S. They have excellent traction, but one reason is they have different rubber compounds for different lugs. They have a softer rubber on every other lug, which will cause normal cupping, but if you have a bad shock or imbalance, it'll really cause you a headache. I'd replace both front shocks with new, replace your tires buying 3 and keeping the best old one as a spare, then have an alignment done. I've always got an alignment done when replacing my tires with new. Doesn't cost that much, and corrects for any worn suspention parts so I don't ruin a new set of tires......You could even buy 4 new tires of a different brand, and keep your spare you have as a spare.....

Hey Everyone, thanks so much for the replies. I would have responded quicker but haven't had a chance. Ok so I decided to just get the 3 new tires... might as well get use out of my spare right!

On the wear topic. I sat down and really looked at it and it is weird what is happening.. it is actualy squaring the tire.. ie it is putting flat sides to the tire.. makeing it like an octagon but with more sides (if i knew how many sides it was making id give the real name!) So basically i can take a CD case and lay it on top the the wheel and it is flat, then there is a ridge and then it is flat again... I'd take a pic but i dont think it would come out in the pic.

Also, what is cupping?

Any thoughts? Kurt

snipped-for-privacy@yahoo.com did pass the time by typing:

That is what your describing. If the shocks are going they will not control tire bounce. Each time the wheel bounces it scuffs off a bit of rubber and that flat spot tends to make it want to bounce again.

Here is a lot of articles to read.

Key issues are to keep the tires rotated and ballanced and maintain proper inflation.

Yup that is what is happening... the middle picture. Ok, so these are fairly new shocks, is there a way to test the schocks to see if they are ok? Will getting new tires and balanced and aligned fix the problem? I dont want to ruin another set.... luckly this showed up at the end of the tire wear..

Thanks a Bunch everyone! Kurt

I have the DT3000 shocks so they are Mounted Can-up much like most people here. I also rotate my tires every 8k miles..

The fact you rotate, suggests it is the fault of the one tire, not the shock. The tire can toss a weight or a rock can knock one off so it goes into an harmonic wobble that will make the flat spots.

This usually shows up as a small vibration as you pass through 50-55 mph or so. If you have really good shocks, they can cover it up and make it a light vibration.

Mike

86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's

snipped-for-privacy@yahoo.com wrote:

Went out and bought 3 more tires... getting them mounted on Friday. Hopefully it was just a weight that I threw and i wont have this happen again, i examined the other tires and sure enough it is only this one.. not even the ones that were on the front last are like this...

Thank you all for the help! Kurt

01' TJ 3inch Teraflex 33x12.5 Muds