Rancho RS5405 RS5000 Series Steering Stabilizer Engineered for vehicles with oversized wheels & tires For a vehicle to use the RS5405 it must have the RS6524B and the RS98510 Pre -installed on the vehicle. the RS5405 is just a replacement stabilizer for the dual kit. Reduce wheel shimmy, bump steer and vibration Universal and direct-fit applications available Liquid metallic finish Protective boot included (select applications)