Frequently Asked Questions About International WorkStar Shock Absorbers

Will these shock absorbers fit my specific International WorkStar model year?

Our shock absorbers are designed to fit International WorkStar models from 2008-2017. However, compatibility can vary based on your truck's specific configuration, including cab type (day cab vs. sleeper), suspension setup (spring or air ride), and wheelbase. We recommend checking your VIN or calling our tech support at 1-888-875-7787 with your truck's details to ensure proper fitment before ordering.

What's the difference between OEM replacement and heavy-duty upgrade shocks?

OEM replacement shocks match your truck's original specifications and are ideal for standard highway and local delivery applications. Heavy-duty upgrade shocks feature larger piston diameters, increased oil capacity, and nitrogen charging for better heat dissipation and control under demanding conditions like construction sites, logging roads, or heavy hauling. If you regularly carry maximum loads or drive on rough terrain, the heavy-duty options will provide noticeably improved ride quality and longer service life.

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

Installation typically requires basic hand tools including socket wrenches, a torque wrench, and potentially a spring compressor for certain applications. Most experienced DIY mechanics can complete the job in 2-3 hours per axle. The upper and lower mounting bolts are usually accessible, though you may need to support the axle with jack stands. We include detailed instructions with each set, but if you encounter seized bolts or damaged mounting points during removal, professional installation may be necessary.

How long should I expect these shock absorbers to last on my WorkStar?

Under normal commercial use, quality shock absorbers typically last 75,000-100,000 miles. However, this varies significantly based on your application. Trucks used in construction, refuse collection, or off-road environments may need replacement every 50,000 miles due to increased stress. Signs you need new shocks include excessive bouncing after hitting bumps, nose-diving during braking, uneven tire wear, or visible oil leaking from the shock body.

Do I need to replace shocks in pairs, and should I change anything else at the same time?

Yes, always replace shocks in axle pairs (both fronts or both rears together) to maintain even handling and prevent premature wear on the new shock. When replacing shocks, it's cost-effective to also inspect and potentially replace worn bushings, bump stops, and mounting hardware. Many customers also choose this time to check leaf spring condition and U-bolts, as accessing these components is easier with the shocks removed.