Need alignment advice
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 862
Likes: 41
From: Mahwah NJ
Need alignment advice
My 2002 zo6 actual rear alignment numbers were 0.13" left and 0.19" right when recently checked. If nothing is done will these #'s cause the extreme inside of the rear tires to wear alot more than the rest of the tire???
Thanks, you guys here on the Forum are GREAT for helping other members who don't have technical experience.
Thanks, you guys here on the Forum are GREAT for helping other members who don't have technical experience.
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 862
Likes: 41
From: Mahwah NJ
Thanks, but i was referring to rear toe with those #'s. Would that cause the excessive inner wear I experienced??
My rear camber was -0.85 left and -.61 right.
I have very excessive inner wear on the 1/8 inside tire on both sides
My rear camber was -0.85 left and -.61 right.
I have very excessive inner wear on the 1/8 inside tire on both sides
Last edited by 19vette91; Jul 16, 2012 at 11:59 PM.
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 862
Likes: 41
From: Mahwah NJ
the extreme inner right tire side is down to the white treads while the center and outside is half way to the tread wear bar???
pretty much the same on the left tire, but tread wear not as bad.
pretty much the same on the left tire, but tread wear not as bad.
Team Owner
Joined: May 2001
Posts: 87,294
Likes: 1,579
From: Western NY
In my humble opinion, the combination of a little too much negative camber, and a little too much toe, is causing your problem.
I seem to recall that the factory spec for rear camber is -.02*, and the toe setting is something like .01* toe out....
I seem to recall that the factory spec for rear camber is -.02*, and the toe setting is something like .01* toe out....
Melting Slicks
Joined: Jun 2010
Posts: 2,809
Likes: 3
From: Yorktown Virginia
It sounds like you need to get new tires but before you do get it aligned to spec first.
Race Director
Joined: Apr 2007
Posts: 11,150
Likes: 889
From: South Western Ontario
I'd have to agree with the others, too much camber and too much toe to get good tire even tire wear.
My alignment is -0.4* camber all the way around with 0.1* toe in on each front wheel and 0.1* toe out on each rear wheel (0.2* total toe on each end). I do lots of highway driving and I'm getting great tire wear and it drives nice too. My rear PS2's hit the wear bars on the inner tread at 40k miles with just slightly deeper tread on the outside.
Others (some aftermarket and performance shops) will tell you to use toe in on the rear, if you decide to try that then use 0.1* toe in on the rear instead of the toe out.
Talk to the shop and agree on the exact numbers you want. Don't just let the shop set the alignment "within spec" because there is a large variance allowed in the stock specifications. For example, within stock spec allows one rear wheel to toe in and the other to toe out. Not getting the settings equal side to side can really mess with the handling and you won't be happy how it drives. The only variance should be a little more caster in the right front (somewhere around 0.5* to 1*) to compensate for road crown.
My alignment is -0.4* camber all the way around with 0.1* toe in on each front wheel and 0.1* toe out on each rear wheel (0.2* total toe on each end). I do lots of highway driving and I'm getting great tire wear and it drives nice too. My rear PS2's hit the wear bars on the inner tread at 40k miles with just slightly deeper tread on the outside.
Others (some aftermarket and performance shops) will tell you to use toe in on the rear, if you decide to try that then use 0.1* toe in on the rear instead of the toe out.
Talk to the shop and agree on the exact numbers you want. Don't just let the shop set the alignment "within spec" because there is a large variance allowed in the stock specifications. For example, within stock spec allows one rear wheel to toe in and the other to toe out. Not getting the settings equal side to side can really mess with the handling and you won't be happy how it drives. The only variance should be a little more caster in the right front (somewhere around 0.5* to 1*) to compensate for road crown.
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Team Owner
Joined: May 2001
Posts: 87,294
Likes: 1,579
From: Western NY
I'd have to agree with the others, too much camber and too much toe to get good tire even tire wear.
My alignment is -0.4* camber all the way around with 0.1* toe in on each front wheel and 0.1* toe out on each rear wheel (0.2* total toe on each end). I do lots of highway driving and I'm getting great tire wear and it drives nice too. My rear PS2's hit the wear bars on the inner tread at 40k miles with just slightly deeper tread on the outside.
Others (some aftermarket and performance shops) will tell you to use toe in on the rear, if you decide to try that then use 0.1* toe in on the rear instead of the toe out.
Talk to the shop and agree on the exact numbers you want. Don't just let the shop set the alignment "within spec" because there is a large variance allowed in the stock specifications. For example, within stock spec allows one rear wheel to toe in and the other to toe out. Not getting the settings equal side to side can really mess with the handling and you won't be happy how it drives. The only variance should be a little more caster in the right front (somewhere around 0.5* to 1*) to compensate for road crown.
My alignment is -0.4* camber all the way around with 0.1* toe in on each front wheel and 0.1* toe out on each rear wheel (0.2* total toe on each end). I do lots of highway driving and I'm getting great tire wear and it drives nice too. My rear PS2's hit the wear bars on the inner tread at 40k miles with just slightly deeper tread on the outside.
Others (some aftermarket and performance shops) will tell you to use toe in on the rear, if you decide to try that then use 0.1* toe in on the rear instead of the toe out.
Talk to the shop and agree on the exact numbers you want. Don't just let the shop set the alignment "within spec" because there is a large variance allowed in the stock specifications. For example, within stock spec allows one rear wheel to toe in and the other to toe out. Not getting the settings equal side to side can really mess with the handling and you won't be happy how it drives. The only variance should be a little more caster in the right front (somewhere around 0.5* to 1*) to compensate for road crown.
That's it in a nutshell..... If you're not sure what "numbers" you want, simply go with the "nominal", or dead center, of the "acceptable range"...