Frequently Asked Questions About International ProStar Shock Absorbers

What years and models of International ProStar are these shock absorbers compatible with?

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

How difficult is it to install these shock absorbers, and what tools will I need?

Installation typically takes 2-3 hours per axle for someone with moderate mechanical experience. You'll need basic hand tools including a socket set (typically 18mm-24mm), torque wrench, jack stands, and potentially a spring compressor for certain models. The most challenging part is usually removing the old shocks if they're corroded. Many customers report that having a second person helps significantly, especially when aligning the new shocks. Professional installation typically runs $150-300 if you prefer to have a shop handle it.

What's the difference between OEM and aftermarket shock absorbers for my ProStar?

OEM shocks are manufactured to International's original specifications and typically last 150,000-200,000 miles under normal conditions. Aftermarket options like Gabriel, Monroe, or Sachs often provide similar or better performance at 30-50% less cost. The main differences are warranty coverage (OEM usually offers 2 years, aftermarket 1 year) and availability. Many drivers report that quality aftermarket shocks actually provide better ride comfort than OEM, especially the gas-charged models.

How do I know when my ProStar shock absorbers need replacement?

Common signs include excessive bouncing after hitting bumps (more than 2-3 oscillations), nose-diving during braking, uneven tire wear, visible oil leaks on the shock body, or a noticeably rougher ride. ProStar shocks typically need replacement every 150,000-200,000 miles, but this varies based on load weight and road conditions. If you're experiencing cab sway or your truck feels unstable during turns, your shocks are likely overdue for replacement.

Do I need to replace all shock absorbers at once, or can I do them individually?

While you can technically replace shocks individually, we strongly recommend replacing them in pairs (both fronts or both rears) to maintain balanced handling and prevent premature wear on the new shock. Mixing old and new shocks on the same axle can cause uneven suspension performance and potentially dangerous handling characteristics. If budget is a concern, prioritize the front shocks first as they typically wear faster and have a greater impact on ride quality and steering control.