Truck Turner (1974).
Skip-tracer Truck Turner and his partner Jerry are two tough, modern day bounty hunters. All hell breaks loose as they comb the underworld for a three-time loser and a well-connected pimp who has jumped bail. When the pimp is found mysteriously murdered, a hit is put out on Truck and his partner. Then his partner is killed turning Truck into a cold and deadly machine bent on vengeance.
Directed by Jonathan Kaplan. Starring: Isaac Hayes, Nichelle Nichols & Scatman Crothers. (91 mins).