Got my CDL driver's license in 1976 in a 1962 Mack B-73 with a 262 Cummins engine and a 5 X 3 Triplex transmission. Non-synchronized gears and two shifters.
In the early '80's, I drove in "the patch" - most of our trucks had 5X4 Brownie set-ups.
Learned to shift gears so young, I had to duck under the dashboard, stab the clutch, and get a gear - before bouncing back to where I could see through the windshield - '57 Chevy 4X4 - original.
Now keep an '09 Dodge Cummins w/ a 6 speed manual for ranch work & pulling trailers.
Beating the damn door down on 70!
