If anyone needs to replace the Rack & Pinion in a 2001 GMC Sierra 1500, this video might help. I would have loved to have had a video like this when we replaced my dad's. It's sounds like a lot, but its not really a hard job if you know what to do. A haynes manual helps too.
http://teach-me-auto.com/RackAndPinion2001GMCSierra1500.html
http://teach-me-auto.com/RackAndPinion2001GMCSierra1500.html
