Timbren Active Off-Road Rear Bump Stop Kit for Toyota 4Runner (1990–2002)

The Timbren Active Off-Road Rear Bump Stop Kit is built for Toyota 4Runner owners who demand improved rear suspension performance on rugged trails and challenging overland routes. By replacing factory bump stops with progressive Aeon® springs, it helps soften harsh bottom-outs while improving vehicle control across uneven terrain.

Progressive Aeon bump stops absorb energy as the rear suspension reaches full compression, creating a smoother transition instead of a harsh impact. This helps improve confidence when navigating rocks, ruts, whoops, and uneven trail surfaces.

By reducing severe bottom-out forces, the system helps minimize stress on rear shocks, suspension components, and mounting points. This added protection supports long-term durability during repeated off-road use.

Unlike hydraulic bump stop systems that require periodic rebuilding, the Active Off-Road kit operates without fluids or scheduled maintenance. Once installed, it delivers dependable performance with virtually no upkeep.

The direct-fit design allows installation using common hand tools without complicated setup procedures. It is engineered for DIY-friendly installation, allowing enthusiasts to upgrade their suspension with minimal downtime.