More than two hours of practice for the Camping World Truck Series’ Pocono Mountains 150 saw defending race winner Austin Dillon claim the fastest speed.
Dillon ran only 20 laps around Pocono Raceway and peaked with a speed of 166.482 mph.
The Richard Childress Racing driver was followed by Erik Jones (165.612), Kyle Busch (165.023), Timothy Peters (164.087) and Johnny Sauter (164.045).
Brad Keselowski finished as the seventh fastest, CWTS points leader Matt Crafton was 10th and Kevin Harvick wound up 12th quickest.
Speed chart: