If you’re my age or older, there’s a pretty good chance that at some point you learned to drive a manual transmission (aka a stick shift). It’s also likely that you’re familiar with terms like “3-on-the-tree” and “four-on-the-floor.” If you’re younger than 50, it’s less likely that you ever learned to drive a manual. The main difference between automatic and manual transmissions is who does the shifting – an automatic transmission decides for you when to shift (based upon you