So doing my brakes today and look what do you know! I discovered this. Funny though i got my tires aligned like at 96k miles and the tech didn't say anything so I would guess it wasn't this bad back then. But anyways, i'm at 100200 miles right now and I discovered this with my tires all chewed up on the insite area.

Front Driver's inside inside tire: chewed raw but is not showing the metal bands, but I'm sure its on its way to that.

Front Passenger's inside tire: chewed up and METAL BANDS SHOWING!


Anyways, I got the front tires at 53379 miles and it lasted about 45-50k without wearing out the tires to the bare metal sooooo, hmmm what could anything be up with the suspension to cause this? Or could there by no issue????

Just throwing it out there but anyway, any clues?

 

Unless your car is lowered, has some other suspension mods, or was recently damaged, that guy royally screwed up your alignment. If it's that bad, it's probably making unusual sounds as you're driving around.

 

hmmmm i gotta be more observant but I haven't had any weird noises... But anyway, no suspension mods. All stock hmmm.

 

Camber and/or toe out of spec by a large margin.

 

1. Have these tires ever been taken off the wheels and swapped? This should be a part of preventive maintenance.

1. 100,000 is lots of miles. Worn shocks? Worn suspension components? You will have to have the suspension inspected.

 

Looks like excessive Toe in/out and negative camber.

If you are lowered, you need a camber & toe kit for the rear and maybe some camber arms up front.

Also, whether you're lowered or not, our camber/toe bolts in the rear are known to sometimes slip, throwing your alignment out of spec. So even if you were properly aligned when you bought the tires, it's a good idea to get your alignment checked once in a while to make sure that it hasn't slipped out of alignment. In your case 4k means that it either wasn't right or was knocked back out of spec fairly soon after the alignment.

One other thing, could your offset be allowing the inside of the tires to rub the inner fender?

 

If you got 45-50k out of a pair of tires you must drive very conservatively!

Anyways, it sounds like you put new tires on when you got the alignment/?/
something shifted shortly after the alignment or the guy doing the alignment screwed up. 4k miles after an alignment isn't much and another possibility is you hit something to jar the suspension /?/

You'll need to get it checked -> aligned, and some new tires

 

They either are toed out, and or compression arm bushings shot.

When the compression ARM bushings is blown the car will properly align, but not hold the setting the second you drive off the rack.

 

Where is the compression arm bushings?

 

Looks like toe-out and/or negative camber.

I vote for way too much toe-out.

 

Yeah, I was thinking the toe was probably the worst of it. Negative camber usually is a slope across the tire. This is more of a chop on the inside edge of the tire, which would make me think toe is the main culprit. But I'm no mechanic or alignment tech, either.

That was a good point about the bushing too. I didn't think about that initially, and didn't realize that it would allow alignment but wouldn't hold. I had thought that a blown bushing would be apparent during the alignment. I learn so much on this forum!

Also, ignore my stupidity in not realizing that you were talking about your front tires. Speed reading FTL

 

def need to check compression bushings. i'll go ahead and tell you they are SHOT.

the car won't align/stay aligned if this is the case.

and can you please elucidate on how you get 45-50k out of tires?

 

looks like your toe settings are off.

 

Looking at it from my computer (not my phone ) def toe and extra Caster. The extra caster is caused by the compression arm bushings, then the toe is probably from the same problem.

50k on front tires , easy. I get the same, just because vegas has straight road and i don't drive aggressive on the street. Then have seperate track tires.

 

A lot of highway driving that's for sure! I don't really drive THAT aggressively. I mean, I downshift and drive fast 25% of the time, but for the most part I drive normally. And I don't really slide around or drift or anyway. Its my daily driver to work, school, and now work for the past 18k miles or so...

The tires are kuhmo spts btw.

 

Thats definitely an alignment issue. I hope Pep Boys didn't do your alignment.

 

Take it back to the alignment shop & ask for new tires!

 

+1.

 

With blown compression arm bushings they should tell you to get bent. When the bushings are blown it it not simple to tell, the car align just fine , but the second the car rolls off the rack the alignment is off.

 

Whoa, you got 100K out of a set of tires on a Z? You deserve a plaque and a new set of tires.