Frequently Asked Questions About International 9300/9370 Shock Absorbers

Will these shock absorbers fit my specific International 9300 or 9370 model year?

Most aftermarket shock absorbers for International 9300/9370 trucks are designed to fit model years 1987-2007. However, there can be variations based on your truck's suspension configuration (air ride vs. spring suspension) and whether you have a day cab or sleeper. Always check the product specifications for your exact year and confirm your truck's suspension type before ordering. If you're unsure, measure your current shocks from center of mount to center of mount when fully extended.

What's the difference between standard and heavy-duty shock absorbers for these trucks?

Standard shocks are suitable for typical highway driving and lighter loads, while heavy-duty shocks feature larger piston diameters, reinforced mounting points, and higher-pressure gas charges. Heavy-duty options are recommended if you frequently haul maximum loads, drive on rough roads, or notice excessive bouncing with standard shocks. The heavy-duty versions typically last 25-40% longer under severe service conditions but cost about 30-50% more than standard replacements.

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

Installation is straightforward for those with basic mechanical skills and can typically be completed in 30-45 minutes per shock. You'll need standard hand tools including wrenches (typically 3/4" and 7/8"), a floor jack to support the axle, and safety stands. The upper mounts are usually accessible from inside the frame rails, while lower mounts attach to the axle. No special tools or spring compressors are required, but penetrating oil is recommended for rusty bolts.

How do I know when my International 9300/9370 shocks need replacement?

Common signs include oil leaking from the shock body, excessive bouncing after hitting bumps (more than 2-3 oscillations), nose-diving during braking, uneven tire wear, or a harsh, jarring ride quality. Visually inspect for bent shafts, damaged bushings, or loose mounting hardware. Most drivers report needing replacement between 150,000-250,000 miles, though this varies significantly based on load weight and road conditions.

Are gas-charged or hydraulic shock absorbers better for my International truck?

Gas-charged (typically nitrogen) shocks are generally preferred for International 9300/9370 trucks as they resist fade better during extended highway driving and provide more consistent damping. They also minimize foaming of the hydraulic fluid, which maintains performance during temperature extremes. Hydraulic-only shocks are adequate for local delivery or lighter-duty applications but may experience fade on long downhill grades or rough roads. Gas-charged models typically cost 15-25% more but offer superior ride control and longevity.