his may be the best handling upgrade you'll ever make! GM muscle cars are notorious for loose, sloppy steering and the infamous GM "dead zone" in the steering wheel. Now you can achieve precise, commanding steering with this bolt-in solution! The Delphi 670 Power Steering Gear Box utilizes the latest in steering technology, including a rack and pinion style valve and specifically tuned effort characteristics. Kits include steering couplers and power steering hose adapter fittings if necessary.