Rack and Pinion Steering System
The rack and pinion steering gear is mounted to the front axle with two brackets, and connected by tie-rod ends to the axle steering arms. When the steering wheel is turned, the intermediate steering shaft turns the input shaft, rotating the torsion bar and the valve. When the valve turns, power steering fluid is redirected and provides power assist to turn the pinion gear meshed with the rack teeth, moving the rack left or right. The rack, with a tie-rod at each end, then moves the steering arms on the axle, and pivots the wheels.
This design provides drivers with more responsive steering, with increased performance and “road feel.” It virtually eliminates steering issues when the driver hits a bump (bumpsteer), and significantly reduces roll steer when a vehicle goes into a curve. Wandering is significantly reduced as well, so the vehicle tends to drive straight on the highway. It has a lower steering ratio, which means drivers don't have to turn the steering wheel as much to get the wheels to turn a given distance. Overall, rack and pinion steering greatly improves steering response, and reduces driver effort and fatigue.