@@khalifabdul-samaad6313 a lot of it originally came from deductive reasoning. I would usually study part numbers from Manufacturers catalogs & websites, and piece together the differences. In the past few years, I’ve taken to asking the manufacturers for information, particularly Hadley because many of their part numbers aren’t even on the open internet. I have perfect pitch too, which helps out a lot.
In California if your semi truck has black smoke or jake breaks it is a very bad crime can’t even hear the turbo because of the engin filter thing onley time I can hear jake break is in Mexico
