Frequently Asked Questions About International 9300/9370 Torque Rods & U-Bolts

What are the differences between OEM and aftermarket torque rods for my International 9300/9370?

OEM torque rods typically feature forged steel construction with rubber bushings rated for 500,000+ miles. Aftermarket options vary widely - premium brands like Meritor and Hendrickson match OEM specs, while economy options may use cast steel and lower-grade bushings. For heavy-duty applications or frequent loads over 80,000 lbs, we recommend sticking with OEM or premium aftermarket brands. Economy options work well for lighter regional hauling under 60,000 lbs GVW.

How do I know which torque rod length I need for my specific International model year?

International used three different torque rod lengths across the 9300/9370 series. Models from 1987-1999 typically use 24-inch rods, 2000-2007 models use 26-inch rods, and 2008+ models use 28-inch rods. However, suspension modifications and lift kits can change these requirements. Always measure your existing torque rods from center-to-center of the bushings, or check the part number stamped on your current rods. If you're unsure, our parts specialists can verify the correct length using your VIN.

Can I replace torque rods without removing the entire suspension?

Yes, torque rods can be replaced individually without full suspension removal. You'll need to support the axle with jack stands, remove the U-bolts on the affected side, and use a pry bar to compress the suspension slightly. Most mechanics can complete a single torque rod replacement in 45-60 minutes. However, we recommend replacing torque rods in pairs (both sides) to maintain even suspension geometry and prevent premature wear on the new component.

What torque specifications should I use for U-bolts on International 9300/9370 suspensions?

Standard 3/4-inch U-bolts should be torqued to 250-300 ft-lbs, while 7/8-inch U-bolts require 350-400 ft-lbs. Always use a cross-pattern tightening sequence and re-torque after 500 miles of operation. Grade 8 U-bolts are required for all International heavy-duty applications. Never reuse U-bolts that show thread stretching or corrosion, as this significantly increases the risk of suspension failure.

How often should torque rods and U-bolts be inspected or replaced?

Inspect torque rods every 50,000 miles or during each brake service. Look for bushing cracks, excessive play (more than 1/8-inch movement), or bent rods. U-bolts should be checked for stretching, corrosion, or loose nuts at every oil change. Most torque rods last 300,000-500,000 miles with proper maintenance, while U-bolts typically need replacement every 150,000-200,000 miles or whenever removed for service. Severe-duty applications may require more frequent replacement.