Frequently Asked Questions About International 9300/9370 Steer Axle Springs & Hangers

What years and models are these steer axle springs compatible with?

These steer axle springs and hangers are designed specifically for International 9300 and 9370 models manufactured from 1987 through 2003. They fit both the standard cab and extended cab configurations. Before ordering, verify your truck's exact model year and check if you have the standard 12,000 lb or heavy-duty 14,600 lb front axle rating, as spring specifications differ between these configurations.

What are the most common installation challenges I should prepare for?

The most frequent installation issues involve rusted or seized mounting bolts that require cutting, and alignment difficulties when installing new hangers. Plan for 4-6 hours of labor time. You'll need a spring compressor, heavy-duty jack stands, and potentially a cutting torch for old hardware removal. Many mechanics recommend replacing the spring pins, bushings, and U-bolts at the same time to avoid repeat labor costs. Having a helper makes aligning the spring eyes significantly easier.

What's the difference between OEM and aftermarket spring quality?

OEM springs typically use shot-peened steel with precise arc specifications that maintain ride height longer. Quality aftermarket options from manufacturers like Dayton Parts and Triangle Suspension use similar materials but may have slightly different spring rates. The main differences you'll notice are in the coating quality (e-coat vs powder coating) and warranty terms. Aftermarket springs generally cost 30-40% less but may require replacement sooner if you regularly haul at maximum capacity.

How do I know when my steer axle springs need replacement?

Key indicators include visible cracks in the spring leaves, a sagging front end (more than 1 inch difference side-to-side), excessive bouncing or harsh ride quality, and unusual tire wear patterns on the steer tires. Broken or shifted center bolts are immediate safety concerns requiring replacement. During inspection, check for rust pitting deeper than 1/8 inch or any separation between leaves, as these compromise spring integrity.

Can I replace just one spring, or should I always do both sides?

While it's technically possible to replace a single spring, it's strongly recommended to replace both steer axle springs simultaneously. Mismatched springs with different arc heights or spring rates will cause alignment issues, uneven tire wear, and poor handling characteristics. The labor cost difference is minimal when doing both sides at once, and matching springs ensure proper weight distribution and predictable steering response, especially important for commercial vehicles.