We present to you the Mack B61 with a nine speed over gear duplex transmission. Cigarette optional but recommended.
[su_youtube url=”https://www.youtube.com/watch?v=ssPz50GOdoI” width=”700″ height=”500″ responsive=”no”]https://www.youtube.com/watch?v=XnjfwzFztBQ[/su_youtube]
Video Credit:
Truck Drivers U.S.A