When Henry Ford first started building cars back in 1896, he revolutionized transportation, built an industry, and created a brand new career path for millions of Americans. And there’s never been a better time to be an automotive tech because there have never been more vehicles on the road! Last year, there were nearly 258 million

A differential on a tractor-trailer combination means something very different from a pay differential, but the two are oddly related. A truck’s differential can mean the transmission’s differential, or the power divider, which is another differential altogether. A pay differential? That is how much more a truck driver might be able to make with certain