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The Timbren Suspension Enhancement System for 2004 Toyota Sienna (rear) adds a bolt-on rubber spring to reduce sag and absorb road shocks when hauling or towing, improving ride comfort and vehicle stability. This rear kit supports a 2,400 lb capacity, installs with basic tools and no airlines or drilling, and uses Timbren’s proven rubber spring technology to improve handling under load.
Timbren 2004 Toyota Sienna Rear Suspension Enhancement System
