Mack RD Truck Shock Absorbers

Frequently Asked Questions About Mack RD Truck Shock Absorbers

Will these shock absorbers fit my Mack RD model?

Mack RD trucks were produced over many years with different axle configurations and suspension setups, so shock absorbers can vary by front or rear application, wheelbase, and production year. Always check the part number against your truck's VIN or existing shock specifications before ordering, and reach out to our team if you need help confirming fitment.

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

Common signs of worn shocks include excessive bouncing, uneven tire wear, longer stopping distances, visible oil leaking from the shock body, or a rougher, less controlled ride. If you notice any of these symptoms, it's a good idea to have your shocks inspected and compared against manufacturer wear limits.

Should I replace shock absorbers in pairs?

Yes, most technicians recommend replacing shocks in pairs, either both front or both rear, at the same time. This helps maintain even damping and handling on both sides of the axle, rather than pairing a new shock with one that's already worn.

What is the difference between OEM and aftermarket shock absorbers for these trucks?

OEM shocks are built to match the original specifications Mack used for the RD series, while aftermarket options can vary in valving, materials, and mounting hardware. Both can be reliable choices, but it's important to review the listed specifications for load capacity and mounting style to ensure the replacement performs similarly to what came on your truck.

What tools or steps are typically involved in installing new shock absorbers?

Installation generally involves securing the truck safely, removing the mounting bolts or bushings at the top and bottom of the shock, and installing the new unit with fresh bushings if included. Basic hand tools and a socket set are usually sufficient, though heavier duty trucks may require a torque wrench to properly tighten mounting hardware to spec. If you're not comfortable with suspension work, a qualified diesel technician can complete the job efficiently.