What does GM stand for in train lingo?

GM could stand for General Motors, whose Electro-Motive Division (EMD), was for many years the largest builder of diesel locomotives (and a few electrics). They were replaced by General Electric at the top during the nineties as fuel prices rose. GE used a four-cycle diesel that idled slower and thus burned less fuel than the two-cycle EMD engines. EMD built dozens of different locomotive models, beginning in the mid-thirties. The NW & SW series were end cab switchers, the GP series were two-hood units with two, two-axle trucks (bogies), the SD series featured two, three-axle trucks. The F-series were cab units with a streamlined front and two, two axle trucks. The E-series were similar to the F's, but featured longer bodies to house two diesels, and they had two, three axle trucks. Those were the basic models, but there were also many variations in each series, and there were other series with low production numbers (BL & DD, Model 40). During the eighties EMD made a few stabs at producing full electrics. On their own they built a pair of unusual units. With ASEA of Sweden they built a series for Amtrak. GM has also built diesels for use all over the world, and their '66' model is currently ruling the roost in the UK. Ireland and Australia have also been good customers.

There is no such thing as Generalmodal. Either that or I haven't heard of it yet. I have never heard of or played train lingo so I don't really know. GM (General Motors Electro-Motive Division or GM's EMD) locomotives look like any other locomotive. Their cabs are very distinctive from GE's though. It's kind of hard to explain. It's better noticed through photos of locomotives. Edit: 68-76 is correct. His answer would probably be the best.

I believe it stands for General Manager if you go to this web site is has all the definition you will learn a lot from it I know I did. I hope this helps. http://www.catskillarchive.com/rrextra/glossry1.Html