Frequently Asked Questions About International IH Cabover Steer Axle Springs & Hangers

What model years and series are these steer axle springs compatible with?

These steer axle springs and hangers are designed for International IH Cabover models, specifically the Transtar series (1974-1983), CO-9670 (1973-1980), and Loadstar CO series (1970-1978). Always verify compatibility by checking your VIN plate and existing spring pack measurements. Spring eye sizes and center-to-center distances vary between model years, so measuring your current setup is crucial before ordering.

What weight ratings are available and how do I determine which one I need?

Steer axle springs typically range from 12,000 to 20,000 pound capacity ratings. To determine your needs, check the door jamb sticker for your front GAWR (Gross Axle Weight Rating) or look for stamped numbers on your existing springs. If you frequently haul maximum loads, consider springs rated slightly above your GAWR for improved stability and longevity. Running overrated springs on lighter loads can result in a harsh ride.

Can I install these springs myself or do I need special tools?

While installation is possible for experienced mechanics, it requires heavy-duty spring compressors, proper jack stands rated for commercial vehicles, and torque specifications knowledge. The job typically takes 4-6 hours per side. Critical safety concerns include proper spring compression techniques and ensuring correct shackle angle (typically 45-50 degrees when loaded). Many customers recommend professional installation due to the safety risks and specialized equipment needed.

What's the difference between OEM-style and heavy-duty aftermarket options?

OEM-style springs maintain factory ride characteristics and are typically 5-leaf or 6-leaf configurations. Heavy-duty aftermarket options often feature additional leaves (7-8 leaf packs), shot-peened construction for fatigue resistance, and upgraded steel alloys. Aftermarket springs may offer better longevity but can create a stiffer ride when unloaded. Consider your typical load conditions when choosing.

How long do these springs typically last and what are signs they need replacement?

Quality steer axle springs generally last 200,000-300,000 miles under normal commercial use. Replace springs when you notice: uneven tire wear on front axle, visible cracks or breaks in leaves, permanent sag causing reduced ride height, or excessive wandering/poor steering response. Regular inspection during oil changes helps catch problems early. Always replace springs in pairs to maintain proper vehicle geometry and handling.