W42 was in early 80's trucks, W52 was in the Hilux, W55 was in 2WD pickups in the late 80's, W56 was their go-to truck transmission, and the W59 is in the current Tacoma :p
R series transmissions were mostly 4WD truck use though.
Like I said, semantics. They're all made by Aisin and are used...