Manually Shifting Your Automatic Transmission Explained

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=-USu1OrvwOI

This is a video on how to Manually Shift Your Automatic Transmission in a GMC or Chevy truck.

Manually Shifting, Automatic Transmission, how to Manually Shift Your Automatic Transmission, GMC GMC Denali, LT1, towing, trailer towing
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