Optimize your truck's suspension with the International S1700-S1900 Leaf Springs-Hangers-Acc category. This selection includes top-quality leaf springs, hangers, shackles, and related parts designed for smooth, reliable performance. With options for various International models, these durable components offer great value and are built to last. Whether replacing worn parts or upgrading your suspension, this category has everything you need to keep your truck running smoothly.
Frequently Asked Questions About International S1700-S1900 Leaf Springs, Hangers & Accessories
What years and specific International S-Series models do these leaf springs fit?
Our leaf springs are designed specifically for International S1700, S1800, and S1900 series trucks manufactured between 1979 and 2004. This includes all cab configurations (single axle, tandem, and tri-axle). However, spring specifications can vary based on your truck's original equipment and GVWR rating. We recommend checking your VIN plate or contacting us with your truck's serial number to ensure proper fitment.
How difficult is it to replace leaf springs on my S-Series truck, and what tools do I need?
Replacing leaf springs typically requires 4-6 hours for an experienced mechanic and proper equipment. You'll need a heavy-duty floor jack or lift capable of supporting your truck's weight, jack stands rated for commercial vehicles, a torque wrench capable of 450-500 ft-lbs, and standard hand tools. The most challenging part is safely supporting the axle while removing the old springs. Many customers report that having a second person helps significantly, especially when aligning the new spring eyes with the hangers.
What's the difference between standard duty and heavy duty leaf springs for these trucks?
Standard duty springs typically have 8-10 leaves and are rated for trucks with GVWR up to 33,000 lbs. Heavy duty springs feature 11-13 leaves with thicker individual leaves, suitable for GVWR ratings up to 52,000 lbs. The heavy duty options provide better load capacity but result in a stiffer ride when unloaded. Your door jamb sticker will show your truck's GVWR to help determine which option you need.
Do I need to replace spring hangers and bushings when installing new leaf springs?
While not always mandatory, we strongly recommend inspecting hangers and bushings whenever replacing springs. Worn bushings are a common cause of premature spring failure and can create dangerous handling issues. Look for cracks in the hangers, elongated bolt holes, or bushings with visible wear, cracking, or play. Replacing these components during spring installation saves labor costs and ensures optimal performance of your new springs.
Why are some leaf springs painted and others have different coatings? Which lasts longer?
We offer three finish options: standard black paint, e-coat primer, and shot-peened with paint. Standard paint provides basic protection suitable for moderate climates. E-coat primer offers superior corrosion resistance and is recommended for trucks in salt-belt states or coastal areas. Shot-peened springs with paint provide the best fatigue resistance and longest service life, typically lasting 25-30% longer than standard painted springs, making them ideal for severe-duty applications.
