The tires keep the record of a worn shock
Worn shocks and struts are hard to feel, because the change happens so slowly. The tires, though, keep a record of it that anyone can read.
A shock that no longer controls the wheel lets the tire bounce very slightly as it rolls. Each time it comes down it scrubs a patch of tread, and over thousands of miles those patches turn into a pattern of scalloped dips around the tire. Run your hand around the tread and it feels like shallow waves rather than an even surface. This is often called cupping.
Cupped tires also make noise. A hum or a rhythmic roar that grows over months, and changes with speed, is frequently blamed on the tires themselves or on a wheel bearing, when the tire is only reporting what the suspension has been doing.
Why it is worth catching
Cupping is permanent. A cupped tire will stay noisy and wear unevenly even after the suspension is repaired, so the earlier the cause is found, the more tire life is saved.
The habit that helps is simple: look at the tires at every rotation or oil change. Uneven patches, scalloping, or one tire wearing differently from its partner on the same axle are all worth asking about.
What the inspection covers
Shocks or struts, springs, bushings, ball joints and steering linkage, along with the tire wear that points to them. After suspension parts are replaced, car and light truck alignment puts the geometry back, and a vibration left behind may be tire and wheel balancing, both here. The national suspension repair page covers the clunks and pulls that point to worn parts.
Other stores nearby
De Soto and Paducah, KY also offer suspension repair.
About this store
The Jackson store runs seventeen services and is managed by Mike Rhymer.
See the national suspension repair page for all 34 locations.