Frequently Asked Questions About Freightliner FLC112 Torque Rods & U-Bolts

Will these torque rods and U-bolts fit my specific year FLC112?

Our torque rods and U-bolts are designed to fit Freightliner FLC112 models from 1984 through 2003. However, there can be variations depending on your specific suspension configuration (spring or air ride) and axle manufacturer (Eaton, Meritor, or Dana). We recommend checking your existing parts' measurements or contacting us with your VIN to ensure proper fitment before ordering.

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

OEM torque rods typically use forged steel construction with factory-spec rubber bushings, while quality aftermarket options often feature upgraded polyurethane bushings that last 2-3 times longer than rubber. Aftermarket rods are generally 30-40% less expensive than OEM while maintaining the same strength specifications. For heavy-duty applications or frequent heavy loads, we recommend aftermarket rods with polyurethane bushings for better durability and reduced maintenance intervals.

Can I install torque rods and U-bolts myself, or do I need special tools?

While torque rod and U-bolt replacement is possible for experienced DIY mechanics, you'll need specific tools including a torque wrench capable of 450-500 ft-lbs, heavy-duty jack stands rated for commercial trucks, and potentially a bushing press. The job typically takes 3-4 hours per axle. Critical safety note: U-bolts must be torqued to manufacturer specifications (usually 450-500 ft-lbs) in a specific sequence to prevent axle damage or failure.

How do I know when my torque rods or U-bolts need replacement?

Replace torque rods if you notice excessive play in the bushings (more than 1/8 inch movement), visible cracks in the rod body, or unusual tire wear patterns. U-bolts should be replaced if you see thread stretching, rust penetration beyond surface level, or any bending. As a general rule, inspect torque rods every 100,000 miles and U-bolts whenever you service your suspension. Never reuse U-bolts after removal - they stretch during initial torquing and won't maintain proper clamping force if reinstalled.

What's included in a complete torque rod kit, and do I need to buy additional parts?

A complete torque rod kit typically includes the rod assembly with pre-installed bushings and necessary mounting hardware (bolts, washers, and nuts). U-bolt kits include the U-bolts, heavy-duty nuts, and hardened washers. However, you may need to purchase separately: new leaf spring pads, center pins, or alignment shims depending on your suspension's condition. We recommend replacing leaf spring pads whenever changing U-bolts to ensure proper load distribution and prevent premature wear.