These custom designed power steering boxes are built with larger pistons to provide more brute turning power than originals. The Super Box 1 is set at 3 + turns ratio left to right, a + turn faster than stock CJ's giving more feel to the steering wheel and better control on any terrain. Custom firm sport valving is designed to give more stability at highway speeds & less oversteer off road. This means faster turning at slower speeds around trees and rocks or backing into a parking spaces then slower turning on fast, straight highways. Keeps oversized tires under control & gives more stable feel on the highway. All AGR power steering components are carefully re-manufactured using new internal parts. This Super Box 1 aftermarket power steering box from AGR fits 91-95 Jeep YJ Wranglers with 30 spline steering box shafts.