CONCORD, N.C. (AP) _ Pole-sitter Bobby Labonte and Dick Trickle crashed Friday on the backstretch at Charlotte Motor Speedway during the final five minutes of practice for the Carquest Auto Parts 300 NASCAR Busch Grand National race.

Both drivers escaped without injury, track officials said.

Labonte, who also is scheduled to start sixth in Sunday's Coca-Cola 600 Winston Cup race, plans to repair the No. 44 Pontiac so he can remain on the front row of the 300-mile race.

Meanwhile, Trickle, who was scheduled to start 14th, will go to a backup car, meaning he'll start at the rear of the 43-car field. The front of his original car was smashed.

Labonte crew chief Bryant Fraiser said Trickle was running about 30 mph slower than Labonte and cut in front of his driver when the accident occurred.