For 1985, Galles fielded the Buick V-6 engine at the Indy 500, with driver Pancho Carter winning the pole position.
In 1986-1987, Galles Racing became the primary support team for the new Brabham-Honda engine (later known as the Judd AV).
In 1988, Al Unser Jr. returned to the team, and the entry was granted a lease for the Ilmor Chevrolet Indy-V-8 engine.
In 1989, Unser Jr. then driving his familiar Valvoline-sponsored Chevy machine, nearly won the Indy 500, finishing second after crashing out with just over a lap to go in a famous duel with Emerson Fittipaldi.After the 1989 season, Galles merged teams with Maurice Kranes (who had fielded Kraco-sponsored cars for Michael Andretti and then Bobby Rahal).
Rahal was replaced in 1992 by veteran Danny Sullivan as the team introduced their new proprietary Galmer chassis.
Sullivan won the race at Long Beach, after being involved in a controversial incident with less than four laps to go.
Unser and Sullivan retained their seats in 1993, and were joined by Kevin Cogan and Mexican rookie Adrián Fernández, who would share a third car for selected races throughout the season.
Hamilton was replaced in 2000 by a returning Al Unser Jr., who was switching over from CART after being released from Penske Racing.
The team's final year was 2001 where Unser was joined by rookies Didier André and Casey Mears.