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Discussion Starter #1
I have lowered the control arms on my 64.5 and am running GT350 springs and sway bar. The springs are 1" shortened but raised back up with 1" insulators. I am running 15 x 7 Torque Thrust Ds w/ 215/60 x 15 T/A Radials. The alignment as set is
Camber: 0 (R), +1/8 (L)
Caster: +1-1/2 (R), +2 (L)
Toe-In: 1/16" (R), 1/16" (L)
The problem is that after 7,000 - 8,000 miles the inside 2" of the treads are worn down to the warning indicators and the outsides look new. What's up. I need suggestions........the car handles great, but the tire wear is ridiculous. Any and all help gratefully accepted.

Bill Headley
64.5 "D" Coupe
 

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Something is wrong with your front end. With those settings the tires should
wear evenly. The camber should be 0 on both sides but because it is on the +
side it should wear the outside of that tire. I would take it to a different shop
that can do a 4-wheel alignment and check the car out. There is something
goofy with what is going on. I have much the same setting on several of our
cars and the tire wear is fine.

http://home.earthlink.net/~myradpc/_uimages/turn2.JPG
Turn 11 @ Laguna Seca----My Cleveland
http://home.earthlink.net/~myradpc/_uimages/turn1.JPG
 

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Camber is usually set symmetrically. Caster can be asymmetrical (to fight off the road crown). How much the control arms are lowered? If normal 1", the alignment figures aren't right. When did you measure your alignment? Did you have your alignment set right after you changed your springs? They do take awhile to settle. This happened to a friend of mine. I think he had toe-out.

Door handle first when cornering
 

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Those alignment settings will not cause the type of tire wear you are experiencing. As opentracker said, there is something else wrong. My guess is that the alignment settings are not what you were told they were. Inside wear indicates excessive negative camber or a toe out condition. Is the wear even or more of a saw tooth kind of wear?
 
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Discussion Starter #6
It if the standard 1" Shelby control arm drop. The alignment was set not long after the springs were installed, but it's hard to believe that the springs settling would cause this. The saddles need to be replaced, so after I put new ones in, I will take it in for an alignment and try to see what is happening. Maybe it is a combination of the springs and the saddles going bad?? Thanks to all for the input.

Bill Headley
64.5 "D" Coupe
 

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If you can. Go to a shop that will do a 4-wheel alignment.
Good Luck!

http://home.earthlink.net/~myradpc/_uimages/turn2.JPG
Turn 11 @ Laguna Seca in a Ford----Turn 11 @ Laguna Seca in a Chevy
http://home.earthlink.net/~myradpc/_uimages/turn13.JPG
 
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