How many movies have Tōru Yuri and Yoshio Nakajima collaborated on?

They have worked on 9 movies together! Their first movie together was Once and For All Pt.２ (1968) while their highest rated movie together was Truck Rascals IX: A 5,000 Kilometer Blast (1979). They have not worked together since Truck Rascals IX: A 5,000 Kilometer Blast (1979). They are most known for their action films together.