Dirt King Long Travel Leaf Springs | GMC Sierra 1500 (1999-2018)

The Dirt King Long Travel Leaf Springs (DK-63131K1) are heavy-duty leaf spring packs engineered to increase rear suspension articulation and droop travel on compatible full-size trucks equipped with long travel suspension systems. Unlike stock leaf springs that limit axle movement, these long travel packs allow the rear axle to articulate more freely under load and terrain irregularities, giving improved traction and ride quality on uneven surfaces. Their taller stacked height also helps maintain ride height with added rear load or lift height while pairing seamlessly with Dirt King rear shackles and other long travel rear suspension components.

Designed with rugged off-road use in mind, Dirt King’s leaf springs are fabricated from high-quality spring steel and formed to factory-compatible dimensions with additional travel built in. Sold as a pair, this leaf spring upgrade is ideal for trucks that see frequent trail use, long travel suspension builds, or require better articulation without compromising load carrying capability.

Specifications

• Construction: Heavy-duty spring steel
• Includes: Two leaf spring packs
• Suspension pairing: Matches with DK rear shackles and shocks

Compatibility

GMC Sierra 1500 2WD / 4WD 1999-2018

Installation

Remove the factory leaf spring packs from the rear spring mounts and install the Dirt King long travel leaf springs in the same location with the included hardware. Use appropriate shackles (such as Dirt King long travel shackles) and torque all fasteners to specification. After installation, check alignment and suspension articulation for proper movement and clearances.