Hello everyone. I had new tires put on my GTP about 4 years at around 67,000 miles. I also had a 4 wheel alignment done then as well. I have put on about 40k miles since purchasing. I have 108,000 miles on the car currently. The tires have been rotated every 7,000 miles. About 5 months ago I started noticing more noise than usual coming from the tires so I had them checked out by a tire shop. They found that all 4 tires were severly cupped on the inside. They claim that it is most likely due to my struts being bad. Technically aside from them being very noisy I probably could put another 15,000 miles on them easily. The noise is really starting to get to me so I really do not think I can wait another 1 - 2 years before I replace them. If I do replace them I don't want the cupping issue to come back.
I have a few questions...
1) Has anyone every experienced this cupping problem before? I had 130k miles on my GT without ever having an alignment and that car never had issues like that with tire wear.
2) How can I tell I have bad struts? The car passes the basic tests... It does not excessively bounce or does it appear that the struts are leaking. I also feel that the ride is a little harsh. I never recall this car or the GT having a soft ride but I wonder whether it should ride a little better than it does now.
Thanks for the help and advice!
