Deaf Uber driver bashed by trio in Vic

Three men who bashed a deaf Uber driver in a Melbourne road rage attack were driving a stolen vehicle when they deliberately crashed into his car.

Ron Chapman, 64, was attacked by the trio when he stopped to get their black Holden Captiva's registration details after the smash at Frankston North on April 29.

Mr Chapman followed the car for a short time, before it pulled into a side street, possibly Locator or Alba Street or Monterey Boulevard.

As he grabbed his service manual and a pen, a man pulled open the car door and snatched the book out of his hands.

"All I was thinking at that point is that I needed to get the book back ... and that's what I said and he refused," Mr Chapman told reporters through an Auslan interpreter on Tuesday.

"And he then decided to punch me."

Two other men then got out of the car and attacked Mr Chapman from behind.

"They hit me quite hard and squashed me to the ground and kicked and punched me until (a passer by) intervened," he said.

Police on Tuesday appealed to the good Samaritan - described as an older man with a female - to come forward.

They also revealed the Holden was stolen from an address at Mount Waverley on April 15 and had been involved in a series of crimes before it was found at Keysborough on Saturday.

"It's been involved in various offences between Mount Waverley and Rosebud," Detective Senior Constable Nick Jung said.

"Those offences include petrol theft and theft from motor vehicles."

Police released CCTV footage of a woman seen with the Captiva at a service station prior to the assault.

Constable Jung said it was important to find the men as they pose a risk to the whole community.

"If they're willing to assault Ron ... they'd be willing to do this sort of thing to anyone," Const Jung said.

Mr Chapman said while he was frightened after the assault, he wouldn't stop working as an Uber driver.

"I'm just trying to be positive," he said.