4 Signs Your 2015-2019 Chevrolet Silverado 2500HD Needs Drivetrain and Transfer Case Work

Most drivetrain and transfer case problems announce themselves well before they strand anybody. On a 2015-2019 Silverado 2500HD, these are the ones worth acting on.

1. Vibration that appears above 55 mph and grows with speed

This is the symptom people put off longest and regret most. Start by looking at transfer case encoder motors.

2. A four wheel drive light that flashes and never engages

This one is usually early, which is good news, because it is cheap to fix early. Start by looking at transfer case encoder motors.

3. A hum that changes with steering input, which usually points at a wheel bearing

This is the symptom people put off longest and regret most. Start by looking at transfer case encoder motors.

4. A clunk on the transition from drive to reverse

This one is usually early, which is good news, because it is cheap to fix early. Start by looking at u-joints.

What to Do Next

Transfer case and differential fluid on a schedule that tightens sharply if you tow or run in dust. Wheel bearings are replaced on noise, not on mileage.

Ride height, axle ratio and locking differential content all change these numbers.

Everything here is available as a genuine GM part through our Chevrolet OEM parts catalog. If you would rather search directly, search for Silverado 2500HD transfer case encoder motors.