High-Ballin'(1978)

Overview:

When a rash of targeted hijackings threatens to derail the independent trucking business, rig driver "Iron" Duke and his visiting friend Rane put the brakes on the bad guys by taking the law into their own hands. But their vigilante plan involves going toe-to-toe with powerful trucker boss King Carroll and his henchmen, who've been driving everyone out of the game.