The GMC 2500HD has technical service bulletins (TSB) and reports of front hub problems on the truck. The front hubs are part of the drivetrain and steering of the 2500HD. The reported problems include damage to the front hub caused by other steering, tire or axle problems. The hub rotates the brake rotors and holds the lugs of the tires. Once a hub problem develops, the steering, braking and ride of the GMC are affected.
A recall has been reported on the GMC 2500HD that affects more than 32,000 vehicles because the tires and rims installed on these trucks do not meet the required Federal Motor Vehicle Standard. Since the tires and rims are undersized, overloading of the front hubs has been reported. A load that is within the truck's load capacity causes the tires and rims to fail, severely damaging the lugs, rotors and front hub assembly of the GMC 2500HD.
A report concerning a front hub ticking noise has been reported by some GMC 2500HD owners. This noise is attributed to a front hub bearing problem. The front hub bearing fails, causing the noise. Once the bearing begins to fail, the 2500HD becomes hard to control and steer.
A TSB published on the GMC 2500HD concerns a front axle problem that affects the front hubs of the truck. The axle vent tube becomes kinked or crimped, creating a fluid leak that causes the front hubs to lock along with the brake assembly. This leak prevents fluid from reaching the brake and hub assembly, causing brake failure and damage to the front hubs.
The front rotors on the hub assembly on the GMC 2500HD may warp and crack, creating brake and hub problems. The front hub rotates the brake rotors and the rotors overheat, causing the rotors to warp or crack. This warping and cracking affects the brakes and overheats the front hub bearings. Once the hub bearings overheat, the axle, steering control and braking may fail, creating an accident or hazardous situation.
