2021 Chevrolet Silverado 1500
2021 Chevrolet Silverado 1500: Vibration between 65 and 80 mph
GM full-size trucks have a well-documented highway vibration traced to driveshaft balance and tire road-force variation rather than a single defective part.
- Problem
- Vibration between 65 and 80 mph on the 2021 Chevrolet Silverado 1500
- Severity
- ModerateGet it looked at soon
- Can you drive?
- Limited driving
Mild vibration is a comfort and wear problem, not an immediate hazard. But a vibration that appeared suddenly, or one that is getting worse week over week, can indicate a separating tire or a loose wheel — both of which fail without much warning. Keep speeds down until you have looked at the tires.
- Typical repair
- $100–$1,200See full cost breakdown
- Usually reported at
- Any mileage, frequently reported from new
What is different on the 2021 Chevrolet Silverado 1500
The vehicle-specific detail — not the generic version of this fault.
Owners of GM full-size trucks have reported a vibration that appears in a narrow speed band, usually 65 to 80 mph, and that is felt in the seat and floor rather than the steering wheel. It is present while coasting as well as under power, which distinguishes it from a brake or driveline-load problem. GM has issued service guidance covering driveshaft balancing and tire road-force matching on these trucks.
The reason it is harder to fix on a Silverado than on a car is that there are more contributors and they stack. Crew Cab trucks use a two-piece aluminum driveshaft with a center support bearing. The stock tires are large, heavy and often have significant road-force variation from the factory. The rear suspension is leaf-sprung. Any one of those is within tolerance individually and the combination is not.
- Road-force balancing all four tires on a Hunter-type machine is the correct first step: $100–$180, and it fixes a majority of cases where a standard spin balance did not.
- Tire match-mounting or replacement if road-force numbers are high on a specific tire: the offending tire may be replaceable under the tire manufacturer's warranty rather than GM's.
- Driveshaft rebalancing or replacement: $400–$1,200. Ask the shop to check the center support bearing on two-piece shafts.
- Wheel and hub runout check with a dial indicator before anyone replaces parts. See wheel alignment cost for the related front-end work.
Parts involved
What a shop will be inspecting or replacing on this job.
- Driveshaft and center support bearing
- Tires and wheels
- Wheel hubs
- Rear leaf springs and shackles
The fix and what it costs
Start with road-force balancing all four tires and a hub runout check. Escalate to driveshaft balancing only after the tire and wheel side has been properly eliminated.
- Typical repair cost
- $100–$1,200
- Usually reported at
- Any mileage, frequently reported from new
Cost figures are national US estimates for planning purposes. Actual pricing varies with your vehicle, engine, location, shop labor rate, and whether OEM or aftermarket parts are used. Always get a written quote before authorizing work.
The problem in general
How this fault behaves across vehicles, with full diagnostic steps.
A vibration that appears at high speed — usually somewhere between 50 and 80 mph, or roughly highway pace — and is there whether you accelerate, coast or brake. Nearly always tire balance, a bent wheel or a damaged tire.
Read the full car shakes at high speed guide →Other issues reported on the 2021 Chevrolet Silverado 1500
- Collapsed lifters from Dynamic Fuel ManagementA persistent tick that turns into a misfire, caused by deactivating lifters failing on the cylinders the system cycles most. The signature failure of GM's modern V8s.
- Brake pulsation on a loaded or towing truckSilverado rotors are large but the truck is heavy, and thickness variation develops fast on trucks that tow or descend grades regularly.
- Torque converter shudder at light throttleA sensation like driving over rumble strips at steady cruise, caused by torque converter clutch slip in the 8-speed automatic.
- No crank with a cluster of unrelated warning messagesA weak battery on a Silverado produces a dash full of alarming service messages long before it produces an actual no-start.