Horrible front tire wear! Is PP the problem?

[BmacIL]

Excessive front toe is usually the main contributor to uneven/quick wear.

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[robwlf]

yeah im running -1.8 front camber and -1.6 rear with 0 toe up front factory total toe number. think my guy did a tiny bit of tow in on the rear and ive had no problems at all even tread wear all across the tire so far . tire pressure is at 32 cold warms up to about 34 normal driving

and i didnt think these cars had front camber adjustment only rear

 

[BlackandBlue]

Toe is the problem.

\ / wears inside of tire.
/ \ wears outside of tire.

Camber can cause problems but doesn’t eat tires like toe problems.

 

[NightmareMoon]

Toe is the problem.

\ / wears inside of tire.
/ \ wears outside of tire.

Camber can cause problems but doesn’t eat tires like toe problems.

Makes sense on a car that has no camber, but a camber’d car is going to wear the inside in both cases.

Zero toe will make the tires last the longest, also make sure your tire pressures aren’t low. You still may be replacing tires due to inside wear earlier than it feels like you should. To make sure your toe when driving is the same as it was on the alignment rack, make sure your suspension has no play in it.. no bad bearings or pivots, (or else the toe will shift when moving). Any amount of toe-in will wear more than zero toe up front. The Ford spec is zero. The rear axle should have slight toe in for stability.

 

[aleccolin]

Take it to another shop. No kit is needed to adjust camber. All cars have adjustable front camber. Your car has too much negative camber.

The S550 Mustang has no factory front camber adjustment, same as many cars with McPherson strut front suspension. The only "adjustment" would be to loosen the strut mount bolts, but that gets you next to nothing.

Excessive front toe is usually the main contributor to uneven/quick wear.

What he said, your toe is out.

 

[maniak]

The S550 Mustang has no factory front camber adjustment, same as many cars with McPherson strut front suspension. The only "adjustment" would be to loosen the strut mount bolts, but that gets you next to nothing.

Just in case someone does need to adjust the camber up front.. SPC makes Camber adjustment bolts AND you can get a Camber gauge from them too. I've used their gauge for years on Ford TTB suspension (early 90's explorer) and the Mustang strut front end (2006).

Camber Adjusting bolts: https://www.spcalignment.net/component/spc/?task=part_description&pid=81280
Camber measuring tool: https://www.spcalignment.net/component/spc/?task=part_description&pid=91000

~Mark

 

[aleccolin]

Correct, camber bolts are available from the aftermarket. Downside is you lose wheel clearance to the strut, which may be an issue depending on your wheel & tire setup. Best method is with camber plates. I have the Steeda plates and they're a breeze to adjust.

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