Penske's next Indy 500 win was with Rick Mears in 1984. Mears and former Penske driver Tom Sneva battled for the lead in the final 100 laps but after Sneva dropped out with a broken CV joint, Mears led the final 40 laps unchallenged to win by 2-laps ahead of the field. The next year, first-year Penske driver Danny Sullivan led the final 61 laps en route to his first Indianapolis 500 victory after winning a 4-lap shootout with Mario Andretti. In 1987, Penske driver Danny Ongais got taken out of the race due to injuries and former Penske driver Al Unser was tabbed as a temporary replacement. Unser won the race.