5in. x 16in. x 150# Rear Spring

The 5in. x 16in. x 150# Rear Spring by LANDRUM SPRINGS is a heavy-duty suspension component engineered for trucks, SUVs, and performance vehicles that demand superior load-carrying capacity and ride quality. As a mechanic, you'll recognize this as a critical upgrade for vehicles running increased payload, towing capacity, or modified weight distribution. Rear springs are foundational to suspension geometry—they support the vehicle's rear axle, absorb road impacts, and maintain ride height under load. A 150-pound spring rate is ideal for applications where factory springs sag under constant heavy use or where you need to restore factory geometry after adding aftermarket components, winches, or cargo systems.

Landrum Springs manufactures leaf springs with precision tempering and consistent load ratings to ensure predictable suspension response and longevity. The 150-pound rate specification indicates the force (in pounds) required to compress the spring one inch—higher rates provide stiffer support, reducing rear-end squat during acceleration and improving load stability. The 5-inch width and 16-inch length dimensions are standard for mid-to-heavy-duty rear applications, fitting typical multi-leaf spring packs common in pickup trucks and utility vehicles. Weighing 6.74 pounds, this spring maintains the structural integrity needed for repeated cycling under dynamic loads without permanent set or failure, making it suitable for both street and off-road use where suspension articulation and durability are non-negotiable.

Suspension builders and fleet maintenance professionals benefit most from this rear spring when restoring worn suspensions or upgrading vehicles for work-truck duty. Installation typically involves removing the axle load, unbolting the existing spring pack, and securing the new spring using factory U-bolts and hardware—a straightforward bolt-on replacement that requires basic hand tools and an axle jack. Confirm compatibility with your specific vehicle make and year; spring rates are application-specific, and incorrect sizing can compromise handling and void warranties. Pair this spring with quality shock absorbers and bushing kits to maximize suspension performance and vehicle control.