Upgrade your Toyota Tacomas rear suspension with the RAS Suspension Kit engineered for 2005â2025 models with axle-on-top leaf spring configurations. This bolt-on RoadActive Suspension system strengthens your rear leaf springs, reduces rear-end squat, sway, and bounce, and delivers a smoother, more controlled ride whether towing, hauling, or driving daily. Unlike air bag systems, RAS is fully mechanical and maintenance-free no compressors, air lines, leaks, or constant adjustments required. Its progressive design provides extra support under load while maintaining factory-level comfort when unloaded. This 3-in-1 system acts as a helper spring, sway bar, and traction bar at a fraction of the cost of other upgrades and installs in approximately one hour. Key Features:• Fits 2005â2025 Toyota Tacoma (axle on top of leaf springs)• Strengthens rear leaf springs by up to 50%• 3-in-1 system: helper spring, sway control, and traction support• Reduces rear squat, bounce, body roll, and axle wrap• Progressive load support for towing and hauling• Maintenance-free design no air lines or readjustments required• Fully assembled for quick, bolt-on installation (~45â60 minutes)• Proven RoadActive Suspension performance since 1998 Enhances road handling & control Improves towing & hauling stability Reduces rear-end squat & bounce | RoadActive RAS Suspension Kit for 2005 2025 Toyota Tacoma (Axle on Top of Leaf Springs)