Frequently Asked Questions About International 8100-8300 Drive Axle Springs & Hangers

Will these springs and hangers fit my specific International truck model year?

These drive axle springs and hangers are designed for International 8100 and 8300 series trucks manufactured from 1989 through 2004. However, fitment can vary based on your specific axle configuration and suspension setup. We recommend checking your existing spring pack count and measuring your current spring dimensions before ordering. If you're unsure, contact us with your VIN and we can verify compatibility.

What's the typical lifespan of these springs, and what are the warning signs they need replacement?

Under normal commercial use, quality drive axle springs typically last 5-7 years or 500,000-700,000 miles. Key signs you need replacement include: sagging ride height (truck sits lower than normal), uneven tire wear on drive axles, visible cracks or breaks in spring leaves, separated or shifted spring leaves, and excessive bouncing or harsh ride quality. If you notice any of these symptoms, inspect your springs immediately to prevent potential safety issues.

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

While experienced mechanics can perform this installation, it requires heavy-duty equipment including a minimum 20-ton hydraulic jack, heavy-duty jack stands rated for commercial trucks, spring compressors, and impact wrenches. The job typically takes 4-6 hours per axle. Due to safety concerns and the need for proper torque specifications (usually 450-500 ft-lbs for U-bolts), we recommend professional installation unless you have commercial truck repair experience and proper equipment.

What's the difference between OEM and aftermarket springs for my International?

OEM springs match original factory specifications exactly but typically cost 40-60% more than quality aftermarket options. Most aftermarket springs we carry meet or exceed OEM specifications and use similar high-grade spring steel (5160H or equivalent). The main differences are price and availability - aftermarket springs are usually in stock and ship faster. Both options typically carry similar warranties, ranging from 1-3 years depending on the manufacturer.

Do I need to replace springs on both sides of the axle at the same time?

Yes, always replace drive axle springs in pairs (both sides) to maintain proper vehicle balance and prevent premature wear. Mismatched springs can cause uneven ride height, poor handling, accelerated tire wear, and additional stress on other suspension components. When replacing springs, also inspect and replace worn hangers, bushings, and U-bolts to ensure optimal performance and safety.