rear tire wear
 

I had to replace my passenger side rear tire because it had a slice in the side wall. The tread left on both rear tires was about 6mm. The new tire had 10mm of tread. The dealer told me the difference in tread wear between the two, was out of spec by 1mm. So, the right thing to do would be to replace both rear tires. However, they only had one.

The dealer told me the the right side rear is the "drive" wheel. So all the torque goes to this wheel and the left gets whatever is leftover. Therefore, the right rear would wear faster, and the tire tread may come closer to spec.

I've never heard this before. Does this make sense?

Our new tires (PS'2 for example) have 10/32's of tread when new...not 10mm.

Kras,

I believe the dealer is correct to some degree. Boxster's do not have a LSD ( Limited Slip Differential ) so most of the torque would go to the wheel with the least traction I would think. I didn't know that on a Boxster the right side was considered the "drive" wheel with the other side getting whatever is left over. If this is true, whether or not this would cause one tire to wear quicker than the other, I have no idea...

I am not 100% sure of this, though. Someone please correct me if I'm wrong, I would like to know this as well...

Thanks,

Nick

I'd like some detail on this too if anyone knows some more on this subject, cause i've done burn outs and both my wheels leave black tires stripes on the road but the passenger side fades away before the driver side tire. :confused: :confused:

Thats coz the driver's side has a ton of extra weight on it.... sorry, couldn't resist.... just messing with you CJ :)

If you have an open differential, then the torque delivered to each wheel is exactly the same. That's what it means to have an open diff, lift one wheel off the ground and you aren't going anywhere because torque delivery is indentically equal to zero.

Now I'm really confused :confused: :confused: :confused: :confused:

The "new" tire has a tread depth of 8/32 (and 7/32 on the inside). Did they put a used tire on?????

(the tire is a ps2)

1) How many miles on the new tire?
2) Do you spin them?
3) How are you measuring it...with an accurate depth gauge?

Look up your tire at Tire Rack, and make sure you know the exact new tire tread depth for your size. I have seen differences of 1/32-2/32's depending on tires size.

1)The tire has <50 miles.
2)By spinning, do you mean peeling out? If so, the answer is no.
3)I bought the depth gauge today. I measured it at several places on the tire and consistently got 8/32 in the center and outside and 7/32 on the inner groove.

The spec is 10/32.

I'm starting to wonder what’s going on. I'll call the dealer tomorrow.

Thanks for help

Kras, yes, I agree with you, that is very-very strange. Make the call, you have good proof and information. Let us know how it turns out.

How did you pay? Credit card? Might want to call them too.