Two truck drivers have fought back after armed men tried to carjack their vehicle from a Melbourne service station carpark.

Passers-by captured the shocking incident on their phones as the drivers went toe to toe with the would-be thieves, who are now on the run.

Footage captured three men fighting in a service station car park in Scoresby in the city’s east.

Two truck drivers have fought back after armed men tried to carjack their vehicle from a Melbourne service station carpark.© Nine

Despite being outnumbered, one LG delivery driver held his own, fighting them off.

Witnesses said the pair racially abused the man before demanding the keys to his truck.

As they tried to flee he was joined by a co-worker and, armed with a spirit level, exacted his revenge as one man bizarrely attempted to retrieve a guitar from a getaway car.

As the fight fizzled out the brave delivery driver delivered one last flurry of blows.

Police said there were no serious injuries in the fight and the two alleged carjackers fled in a red Subaru southbound on the Eastlink.