SKU: LANJ175
MPN: J175
The Landrum Springs 13-inch x 5-inch 175 lb/in Rear Spring is a premium coil spring engineered for vehicles requiring reliable suspension geometry and consistent load support. This Gold Series rear spring delivers the spring rate and dimensions needed for proper chassis dynamics in custom builds, restorations, and performance applications where OEM suspension components have reached their service limits or require upgrading.
The 175 lb/in spring rate represents the force required to compress the spring one inch—a specification that directly determines how the suspension responds to weight transfer, braking loads, and cornering forces. At 5 inches outer diameter and 13 inches in length, this rear spring fits the dimensional envelope of vehicles designed for conventional coil-over or leaf-to-coil conversion setups. The gold powder coat finish provides corrosion resistance and distinguishes this component as part of Landrum's recognized Gold Series lineup, known for consistency across batch production and resistance to salt air and moisture exposure common in storage or humid climates.
This rear spring serves builders, restoration shops, and suspension technicians who need to match spring rates to specific vehicle weights and ride height targets. Whether you're setting up a classic car, light truck, or custom build, choosing the correct spring rate prevents bottoming, excessive sag, or overstiff ride characteristics. Sold individually, this single spring accommodates single-side replacement or pairs with a matching front spring to establish balanced suspension geometry.
Landrum Springs has maintained a reputation for OEM and performance spring manufacturing since the 1970s. Their Gold Series uses conventional steel construction and powder-coat finishing to meet the needs of builders who require proven spring performance without exotic materials or lengthy lead times.
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