Rahal was replaced in 1992 by veteran Danny Sullivan as the team introduced their new proprietary Galmer chassis. Unser won the 1992 Indianapolis 500 in a Galmer in what would be the closest finish in race history. Despite winning, the Galmer chassis was scrapped after only one season. Sullivan won the race at Long Beach, after being involved in a controversial incident with less than four laps to go. Unser Jr. was leading the race, and Sullivan was running second. The two cars tangled, and Unser was sent spinning into a tire barrier, while Sullivan went on to win. The incident created friction inside the team.