Alignment, SPC Ball Joints, and tire wear

[priceprince]

So I took my car into an alignment shop to have my SPC ball joints installed today and have a 4 wheel alignment done. First a little history... I had my RPM street springs installed several months ago, but like a dummy never had an alignment done. The car seems to handle great, but I never knew what the alignment specs were, and was curious. When the shop got the car on the lift and looked at the alignment, it was pretty much right where I wanted it to be anyway...
Front camber was at -1.0, and rear camber was at -1.7 on one side and -2.3 on the other side. The shop said nothing really needs to be adjusted anyway, so they left it alone. I thought that was fine, so I think I am going to hold off on installing the SPCs and will probably end up selling them here.

The only thing that worries me, is that the rear tires are worn almost completely out, after only about 21,000 miles. They are Goodyear F1 allseasons, and the weird thing is that the middle of the tire is the part that is wearing the most (going toward the inner edge of the tire.) Can this uneven wear be attributed to the high negative camber in the rear? I was hoping to get about double the life out of these tires, but now I'm looking at replacing them immediately.

[zweetdreamz]

QUOTE (priceprince @ Feb 28 2009, 03:29 PM)

So I took my car into an alignment shop to have my SPC ball joints installed today and have a 4 wheel alignment done. First a little history... I had my RPM street springs installed several months ago, but like a dummy never had an alignment done. The car seems to handle great, but I never knew what the alignment specs were, and was curious. When the shop got the car on the lift and looked at the alignment, it was pretty much right where I wanted it to be anyway...
Front camber was at -1.0, and rear camber was at -1.7 on one side and -2.3 on the other side. The shop said nothing really needs to be adjusted anyway, so they left it alone. I thought that was fine, so I think I am going to hold off on installing the SPCs and will probably end up selling them here.

The only thing that worries me, is that the rear tires are worn almost completely out, after only about 21,000 miles. They are Goodyear F1 allseasons, and the weird thing is that the middle of the tire is the part that is wearing the most (going toward the inner edge of the tire.) Can this uneven wear be attributed to the high negative camber in the rear? I was hoping to get about double the life out of these tires, but now I'm looking at replacing them immediately. [/b]

my guess would be that the tires are over inflated. Just a guess though.

[priceprince]

QUOTE (zweetdreamz @ Feb 28 2009, 04:19 PM)

my guess would be that the tires are over inflated. Just a guess though.[/b]

Yeah, that is what the guy at the shop said as well. I guess I was being too optimistic to think I was going to get 50,000 miles out of these tires. If they weren't overinflated, I would've gotten maybe another couple thousand miles.

[priceprince]

Mods, please delete this thread, I should've just posted in the "alignment/specs" thread. Thanks.