YouTube videos of semi truck driving

POretty fun..thirteen speed roadrangers, ten speed, even twin sticks.
On the entry for one of these, a guy named "castirondude" commented
he'd had a 10 speed RoadRanger (with "5 speeds and hi/lo" he said for
the ones not in the known), then a triplex and a two speed rear!

You do the math.

I've posted some comments on (and am registered to) YouTube.

Here's on called "Shifting a Mack B Model".