When Flo and Eddie jumped ship in 1972 after a deranged fan pushed Zappa from the stage, confining him to a wheelchair, Dunbar joined their backing band for a short while, although he would also return to work with Zappa on studio projects like Waka/Jawaka, The Grand Wazoo, and Apostrophe', as well as continuing his periodic studio work for other artists. He briefly formed an association with David Bowie around 1973-74 for the albums Pin-Ups and Diamond Dogs, but in 1975, Dunbar decided to join a new jazz-rock fusion group called Journey. He remained with the band up through 1978's Infinity, departing as Journey brought in vocalist Steve Perry and shifted their sound towards arena-rock.
Dunbar next joined Jefferson Starship in 1978, staying put through 1982's Winds of Change. He resurfaced several years later with Whitesnake and played drums on the band's 1987 commercial breakthrough. However, Dunbar was again gone by the next Whitesnake album; he has since returned to the blues-rock he started his career with, working with such artists as Pat Travers. ~ Steve Huey