Rear wheel alignment
Thread Starter
Heel & Toe
Joined: Aug 2019
Posts: 23
Likes: 2
From: Tennessee
Rear wheel alignment
Can someone give me the alignment specs for my 2017 GS front/rear wheels that will minimize the uneven wear please? My rear tires are wearing fast on the far inside tread and I do not track my car or drive aggressively (only when Mustangs challenge me). Thank you. Jim
Drifting
Joined: Sep 2019
Posts: 1,355
Likes: 635
From: St. Louis
The most important spec to minimize tire wear is toe. Set it to zero front and rear. You can set front camber to -1.0 and rear camber to -0.5 and you will not see much if any inner tread wearing faster than the rest of the tire. Front caster will be fine at +7.0 degrees - just keep cross caster close to zero. Rear caster should be zero to slightly positive (less then +0.5 deg) again keeping cross caster close to zero.
What are your alignment specs now?
What are your alignment specs now?
Last edited by RacerRik; Aug 24, 2020 at 07:21 PM.
Drifting
Joined: Sep 2019
Posts: 1,355
Likes: 635
From: St. Louis
Caster does not cause tire wear unless it is grossly off (in cross caster) but then you would certainly notice the car pulling hard towards one side.
Drifting
Joined: Sep 2019
Posts: 1,355
Likes: 635
From: St. Louis
One caveat to the numbers I stated above. Those alignments will get you pretty even wear if you mostly do in town driving with some spirited driving thrown in. If you baby the car all the time or mostly have highway miles, you will get better tire life at -0.5 front camber and -0.2 rear camber. The harder you drive the car, the more negative camber you need to get the best traction and even wear.
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Drifting
Joined: Sep 2019
Posts: 1,355
Likes: 635
From: St. Louis
Again - the caster will not affect tire wear. Rear caster adjustment is meant to minimize rear wheel bump steer and increase stability when the car is driven up to the limits of traction.
Last edited by RacerRik; Aug 24, 2020 at 08:38 PM.