Frequently Asked Questions About Mack CV/GU Truck Shock Absorbers

Will these shock absorbers fit my specific Mack CV or GU model year?

Our shock absorbers are designed to fit Mack CV models from 2002-2019 and GU models from 2004-2019. However, compatibility can vary based on your truck's specific configuration, including cab type (day cab vs. sleeper), suspension setup, and whether you have air ride or spring suspension. We recommend checking your existing shock's part number or contacting us with your VIN to ensure proper fitment.

What's the difference between gas-charged and hydraulic shocks for my Mack truck?

Gas-charged shocks contain pressurized nitrogen gas that helps prevent fluid foaming during heavy use, providing more consistent damping performance and better heat dissipation. They're ideal for heavy-duty applications, frequent stop-and-go driving, or rough terrain. Hydraulic shocks are more budget-friendly and work well for highway driving and lighter loads. Most Mack CV/GU owners prefer gas-charged shocks for their superior performance and longevity.

Can I install these shock absorbers myself, or do I need special tools?

Installation typically requires basic hand tools including wrenches, sockets, and possibly a spring compressor depending on your suspension type. The job usually takes 30-45 minutes per shock. Common challenges include rusted mounting bolts and limited access space. While many experienced mechanics can handle this job, we recommend professional installation if you're unfamiliar with suspension work, as improper installation can affect ride quality and safety.

How do I know when my Mack CV/GU shocks need replacement?

Replace your shocks if you notice excessive bouncing after hitting bumps, nose-diving during braking, uneven tire wear, fluid leaks on the shock body, or if your truck has over 100,000 miles on the original shocks. Worn shocks can significantly impact braking distance, tire life, and driver fatigue. Most fleet operators replace shocks every 75,000-100,000 miles as preventive maintenance.

What brands do you carry, and are aftermarket shocks as good as OEM?

We stock premium aftermarket brands including Gabriel, Monroe, and Bilstein that meet or exceed OEM specifications. These manufacturers use the same quality materials and often improved designs compared to original equipment. Many aftermarket options actually provide better damping characteristics and longer service life than OEM shocks while costing 30-50% less. All our shocks come with manufacturer warranties ranging from 1-3 years.