The Timbren Suspension Enhancement System for 1990 Toyota 4Runner 4WD (rear) is a rear suspension solution for coil-spring setups that cushions road shocks and helps eliminate sag when towing or hauling. It’s built to improve handling and stability. This bolt-on kit supports a 2,000 lb capacity, installs without drilling or airlines, and leverages Timbren’s hollow rubber spring technology for progressive support under load.
Timbren 1990 Toyota 4Runner 4WD Rear Suspension Enhancement System