Yes about 8 months ago.

 

It isn't about the amount of tread left. And, if you haven't been rotating your tires, then the fronts will wear faster because they have a lot more stress. That's one reason to rotate tires. The others is to prevent cupping, which MTs and some ATs are very susceptible to (especially with bad shocks) ...

http://www.kaltire.com/commercial/tr...ar-conditions/

 

Look at the diagram for cupping. Sure looks like the pic you posted.
HOW TO READ TIRE WEAR

Since you refuse to get the alignment checked, (many shops will give you the numbers for FREE) go up to the write-ups area. At the top will be an index. In the troubleshooting section you will find a Basic DIY Alignment writeup.

But that is more bad forum advice, so disregard...

 

Cupping is what happens when your tires do not stay in constant contact with the road. It is generally caused from worn out shocks which allow the tires to bounce down the road. If you have ever seen a car passing you with a tire that's jittering up and down rapidly this is the cause. If you look at your front tire some blocks are taller than others (darker in color as they are cleaned by the road) other blocks are lighter and not in contact with the road. This will cause an extreme amount of road noise and very premature tire wear. Jeeps do not ride like cars but they aren't that bad either. Chances are you had a bad set of shocks which cupped the tires. Then you installed the rubicon shocks but the damage to the tires was already done. Get another set off take offs and it should ride a lot better.

 

I take care of my Jeep and most of my passengers think its new. Its an 07 and there isnt a scratch on it. Yes it has issues but until I find a decent paying job I'm not going to sink a ton of money into it. Its expensive to live in Los Angeles and I have a child to support so yes things like alignment get put on the backburner. I would get another SUV (im not a car person) but I really don't like other SUVs besides the EB Broncos and I dont have the time or money to take care of one of those. Until then its a jeep.

Oh yeah one more thing when I got my Jeep I had some 15 inch wheel and tires on it but then I upgraded to the larger BF Goodrich tarz with 17 inch moab wheels. Woudl that create any kind of difference?

 

In this image, the alternating light and dark gray of the tire lugs suggest cupping--look closely at the inner lugs where it is easily visible. Cupping makes lots of noise, and when bad enough makes the tires not properly contact the ground, and therefore the vehicle feels squirelly. This is especially so if on the front axle. If only the front tires are cupped, fix whatever cause it and rotate the cupped tires to the rear axle (ignore the rotation chart), and run hoping that the cupping somehow evens out.

 

I got the rubicon shocks at about the same time as the larger tires. I'll take it by a real off road shop soon though to see what the prob is, the folks at the local Jeep stealerships here wont mess with anything like that.

 

This might help ...

 

They may have been cupped when you got them.

 

They came off a new Rubicon and had less than 500 miles on them. I think I got all 5 tires and wheels for $400. Not bad. I love it how some people pay for their tires twice when they take off the stock tires to get new more expensive tires.