rear quadrasteer on 2002 GMC Sierra Denali

how do you replace the rear drive quadrasteer w/ a standard sierra rear end? I would like to dismantle the 4 wheel steer and replace w/ better fuel efficient rear drive.

Asked by for the 2002 GMC Sierra Denali
i had the same issue with the quadrasteering,it is the sensor!it cost 80.00 not 3,000.00 easy to install