That White 4000 was very common around here as a tandem, and the "construcktor" (steel hood) was popular too, especially with loggers. They were regarded a a cheap but capable truck. And, of course, Freightliner was the White Freightliner. White motor company built a bunch of other stuff like military vehicles and farm tractors. When Volvo decided to get into the US truck market, they bought White and GMC heavy's and made "WhiteGMC by VolvoGM
heavy truck corp". To start with they were just rebadged Whites, and the White cab became the Volvo cab that was used for a long time afterward.