Our lineup of Peterbilt 379 Drive Axle Springs & Hangers encompass a wide range of essential components for the drive axle suspension system on Peterbilt 379 trucks. This product line includes replacement springs, shock absorbers, bushings, and other hardware necessary to maintain and repair the rear suspension of these popular semi-trucks. The key features of this product line include: - Compatibility with the Peterbilt 379 model, ensuring a perfect fit for your truck - High-quality, durable components to keep your drive axle suspension in optimal condition - Parts to repair common wear and tear items like spring bushings and hangers - Availability of complete repair kits and individual replacement parts for easy maintenance - Ability to upgrade or customize your Peterbilt's suspension system with premium components Investing in quality drive axle components will help maximize the performance, safety, and longevity of your semi-truck on the road. Not only that, if you're really interested in truly fine-tuning your commercial truck's uspension system, consider buying Peterbilt 379 leaf spring hanger accessories, like bushings, shackles or lift blocks, to adjust your ride height. Or secure your axle movement with heavy-duty torque rods (radius rods) and experience better weight distribution and on-the-road handling with replacement steer axle spring hangers for your Peterbilt truck. FAQs - Peterbilt 379 Drive Axle Springs 1. What do drive axle springs and hangers do on a Peterbilt 379? Drive axle springs and hangers are essential suspension components that support your truck's rear axles, absorb road impact, and maintain proper alignment under heavy loads. They help ensure a smooth ride and reliable handling, especially when hauling freight. 2. How do I know if I need to replace my axle springs or hangers? Common signs include uneven tire wear, poor ride quality, squeaking or banging noises, and visible cracks or rust in your leaf springs or hangers. If your truck sags in the rear or pulls to one side, it may be time to inspect your suspension components. 3. Are these drive axle parts compatible with all Peterbilt 379 models? Most parts in this category are designed to fit standard Peterbilt 379 configurations. However, spring size, hanger style, and axle setup may vary by year or suspension type (e.g., Air Trac, Low Air Leaf, Flex Air). Always check product specs or consult our team to ensure proper fitment. 4. What's the difference between OEM and aftermarket axle springs and hangers? Aftermarket axle springs and hangers are built to match or exceed OEM performance and durability, often at a more competitive price. Many are made with high-strength materials designed for heavy-duty, long-haul applications. 5. Do you carry complete spring and hanger kits or individual parts? We offer both complete kits and individual replacement parts. You can shop leaf springs, spring pins, shackle kits, hangers, U-bolts, and bushings separately or as part of a full rebuild package. 6. Can I install drive axle springs and hangers myself? Installation is possible for experienced mechanics or DIYers with the proper tools. However, because suspension components directly affect safety and alignment, we recommend professional installation if you're not familiar with heavy-duty suspension work. 7. Are these parts compatible with aftermarket or lifted suspensions? Some products are designed for factory-spec suspensions, while others may be compatible with lifted or customized setups. Be sure to verify spring length, arch, and mounting hole dimensions when modifying your suspension. 8. What materials are used in your aftermarket axle springs and hangers? Most springs are made from high-tensile steel for durability under load. Hangers and brackets are typically crafted from heavy-duty stamped or cast steel, designed to resist corrosion and handle the stress of commercial truck operation.