Peterbilt 375/377 Shock Absorbers

Frequently Asked Questions About Peterbilt 375/377 Shock Absorbers

Will these shock absorbers fit my Peterbilt 375 or 377?

Shock absorbers vary depending on axle position (front or rear), suspension type, and the specific model year of your truck. Before ordering, check the mounting length, stem or eyelet style, and diameter of your current shocks, and compare them against the product specifications listed for each item. If you are unsure, our team can help you verify fitment using your VIN or the part number from your existing shocks.

How do I know when my shock absorbers need to be replaced?

Common signs of worn shocks include excessive cab bounce, uneven tire wear, longer stopping distances, visible oil leakage on the shock body, or a rougher-than-normal ride over bumps. If you notice any of these symptoms, it is a good idea to inspect your shocks and replace them in pairs to maintain even handling.

Should I replace shock absorbers one at a time or in pairs?

Most technicians recommend replacing shocks in pairs, either both fronts or both rears, even if only one side shows visible wear. This helps maintain consistent damping and ride quality on both sides of the truck, since shocks tend to wear at a similar rate over time.

What materials and finishes are available for these shock absorbers?

Shock absorbers in this category are typically constructed with steel bodies and housings designed to handle the loads and vibration of heavy-duty trucking applications. Finish options may include standard painted or coated exteriors for corrosion resistance. Specific material and finish details are listed on each individual product page.

Are these shock absorbers easy to install myself, or do I need a professional?

Installation typically involves removing the old shock by disconnecting the upper and lower mounting hardware, then bolting in the replacement using the same mounting points. While many experienced truck owners handle this job with basic hand tools, proper torque specifications and mounting orientation matter for safe performance, so if you are not confident in the process, having a qualified technician complete the installation is recommended.