Leaf Spring Slider Box w/Roller Bearings

The Allstar Performance Leaf Spring Slider Box with Roller Bearings (ALL 60035) is a heavy-duty suspension component engineered for vehicles requiring smooth, controlled leaf spring articulation under load. This slider box assembly features integral roller bearings that reduce friction during suspension travel, enabling the leaf spring pack to move laterally without binding. Constructed from steel with a natural finish, the unit is designed for both bolt-on and weld-on mounting applications, providing installation flexibility for custom builds and retrofit scenarios.

The roller bearing design is the critical advantage of this Allstar Performance slider box. Traditional slider boxes rely on sliding surfaces that accumulate wear and corrosion, degrading articulation over time. Roller bearings distribute loads across a larger contact area and maintain consistent movement throughout the suspension's range of motion. This translates to improved handling consistency, reduced noise from suspension binding, and extended service life of both the slider box and the leaf spring pack itself. Weighing 2.98 lbs and measuring 8 x 3 x 11.05 inches, the assembly integrates compactly into most leaf spring suspension setups without requiring extensive modification.

This component is intended for off-road vehicles, performance vehicles with traditional leaf spring suspension, and custom builds where reliable suspension geometry matters. Whether managing rough terrain, towing loads, or high-performance driving, controlled leaf spring movement directly affects vehicle stability and component longevity. The bolt/weld-on design accommodates both temporary mounting solutions and permanent fabrication work, making it suitable for shops and builders seeking a proven upgrade to stock suspension systems.

Allstar Performance is recognized in the automotive aftermarket for suspension and frame components that prioritize durability and functional performance. The Leaf Spring Slider Box with Roller Bearings represents the brand's engineering focus on reducing friction and wear in critical suspension interfaces. For operators and builders upgrading leaf spring suspensions, roller bearing sliders offer measurable improvement over conventional designs in articulation smoothness and component fatigue resistance.