Frequently Asked Questions About International 8600 TranStar Steer Axle Spring-Hang

What years of International 8600 TranStar models are these steer axle springs and hangers compatible with?

These steer axle springs and hangers are designed to fit International 8600 TranStar models from 2007 through 2017. However, compatibility can vary based on your specific truck configuration, including whether you have a set-forward or set-back front axle. We recommend verifying your VIN and axle configuration before ordering to ensure proper fitment.

What is the weight capacity of these springs, and how do I know which spring rate I need?

Spring capacities typically range from 12,000 to 14,600 pounds per axle, depending on the specific part number. To determine the correct spring rate for your truck, check the specification tag on your driver's side door jamb or consult your original equipment specs. If you're experiencing frequent bottoming out or a harsh ride, you may need to adjust your spring rate accordingly.

Do I need special tools or equipment to install these springs and hangers?

Yes, proper installation requires several specialized tools including a heavy-duty jack or lift capable of supporting the front axle weight, spring compressors, torque wrenches, and proper safety stands. Installation typically takes 3-4 hours per side for experienced mechanics. Due to the safety risks involved with compressed springs, we strongly recommend professional installation unless you have experience with heavy truck suspension work.

What's the difference between OEM and aftermarket springs, and which should I choose?

OEM springs are manufactured to exact International specifications and typically carry a higher price point but ensure perfect fit and ride characteristics. Aftermarket options from reputable manufacturers like Dayton, Hendrickson, or Triangle often provide comparable quality at 20-30% less cost. The main differences are in warranty coverage (OEM typically offers longer warranties) and minor variations in steel composition that may affect longevity under extreme conditions.

How often should I inspect or replace my steer axle springs and hangers?

Inspect your springs and hangers every 50,000 miles or during regular PM services. Look for signs of cracking, excessive rust, bent leaves, or worn bushings in the hangers. Most springs last 300,000-500,000 miles under normal highway use, but severe service applications may require replacement at 200,000 miles. Replace springs in pairs to maintain proper ride height and handling characteristics.