A New Zealand man accused of the manslaughter of a driver with a history of road rage has been found not guilty of manslaughter by a Queensland jury.

But Tamate Heke was found guilty of unlawful striking causing death.

Tamate Heke is seen arriving at the Supreme Court in Brisbane, Thursday. Credit:AAP

He had denied unlawfully killing Shane Merrigan during an incident on Brisbane's Gateway Motorway on December 1, 2015.

The Brisbane Supreme Court jury took half a day to decide Heke had been provoked when he punched the 50-year-old, causing him to fall onto the road and into the path of an oncoming truck.