Driveway Pinpoint Test
Note the exact speed where the vibration starts and peaks. Out-of-balance shakes typically have a sweet spot — worst at 60–70 mph, then getting better above 75 mph. This resonance pattern is the classic balance signature. Also inspect your tires by running your hand across the tread: cupped (scalloped) tires feel bumpy and uneven diagonally across the surface, like someone took a spoon and scooped hollows out of the tread. Any visible cupping or a clear balance resonance zone means balance and tire inspection first.
Fix-vs-Skip Money Panel
DIY Cost
~$20
parts only
Shop Cost
~$80
parts + labor
If you skip it
Out-of-balance tires wear unevenly and faster, shortening tire life by 10,000–20,000 miles. The vibration stresses wheel bearings, tie rod ends, and steering components, accelerating their wear. A tire with severe cupping can develop a flat spot or bubble — potential blowout risk at highway speeds.