How many movies have Gōzō Sōma and Yoshio Kobayashi collaborated on?

They have worked on 3 movies together! Their first movie together was Dragon Princess (1976) while their highest rated movie together was Truck Rascals III: Homesick Ichibanboshi (1976). They have not worked together since Curse of the Dog God (1977). They are most known for their action films together.