Peterbilt 389 Glider Shock Absorbers

Frequently Asked Questions About Peterbilt 389 Glider Shock Absorbers

Will these shock absorbers fit my Peterbilt 389 glider kit truck?

Shock absorbers for the Peterbilt 389 glider are designed to match the specific suspension setup used on glider kit builds, which can differ from standard production trucks. Before ordering, confirm your truck's front and rear suspension type, ride height, and mounting configuration, as glider trucks are often built with a mix of components from different eras and manufacturers. Checking part numbers against your existing shocks or consulting with our team helps ensure a correct match.

What is the difference between steering shocks, cab shocks, and suspension shocks?

Steering shocks help dampen vibration and kickback at the steering axle, cab shocks reduce bounce and sway in the cab mounting system, and suspension shocks control axle movement over the road. Each type serves a different purpose and is not interchangeable, so it's important to know which position on the truck you're replacing before purchasing.

How do I know when it's time to replace my shock absorbers?

Common signs include excessive bouncing, a rougher than normal ride, uneven tire wear, visible oil leakage from the shock body, or a cab that sways more than usual during turns. If you notice any of these symptoms, it's a good idea to inspect the shocks and replace them in pairs to maintain even handling.

Should shock absorbers be replaced one at a time or in pairs?

Shocks are generally recommended to be replaced in pairs, either both sides of the front axle or both sides of the rear, so the truck maintains balanced damping and handling. Replacing only one side can lead to uneven ride quality and faster wear on the new shock.

What quality and warranty differences should I look for between shock absorber brands?

Shock absorbers vary in build quality, materials, and seal design, which affects how well they resist leaks and hold up under constant vibration and load. We carry a range of options from trusted manufacturers, and product listings note any applicable warranty coverage so you can compare durability and value before making a decision.