Shop for Aftermarket Torque Rods & U-Bolts for the Sterling L-Series. Keep your Sterling truck's suspension in top shape with essential parts that are built to last. Here's some of what we have available: Torque rods, U-bolts, bushings, rebuild kits, and alignment shims. Fits Models: Designed for Cascadia, FL, M2, and more. The benefits of this product lineup: Durable materials, crimped and adjustable options, and improved ride quality. Whether you're replacing worn components or upgrading your suspension, this product lineup has everything you need to keep your rig road-ready.