Both Chevy Corvette C8.R GTDs have gone behind the wall with apparent technical problems in a major blow to the Chevrolet factory team’s efforts to claim a second consecutive Rolex 24 at Daytona class win.

The No. 4 entry from last year’s GT Le Mans class-winning team was taken back to its garage in the seventh hour and was joined by its sister No. 3 car around two hours later.

In the ninth hour, both cars were being worked on feverishly by Pratt & Miller mechanics in front of a growing crowd of on looking spectators.

A Corvette Racing spokesperson said that the team is inspecting the alternator on the No. 4 car, while the cause of the No. 3 car’s issue is unknown.
Antonio Garcia entered the pits during a caution period and parked up to allow crew members to remove the engine cover and inspect the rear of the car.

In addition to going behind the wall for more extensive checks, the Spaniard’s No. 3 entry was handed a drive-through penalty for refueling while a team member was working underneath the car.