It was a first place finish for Matt Kenseth and a second place finish for Denny Hamlin in the Bojangles Southern 500 at Darlington Raceway this past weekend. Joe Gibbs Racing drivers Denny Hamlin, Kyle Busch and Matt Kenseth have their cars equipped with the JASPER traditional three-rail 4-Speed Transmission. Michael Waltrip Racing drivers Martin Truex, Jr., Mark Martin and Clint Bowyer use JASPER’s single-rail version of the 4-Speed. A recap of the NASCAR Sprint Cup Series drivers running JASPER Race Products is as follows: 1st Matt Kenseth (JASPER 4-Speed Transmission) 2nd Denny Hamlin (JASPER 4-Speed Transmission) 6th Kyle Busch (JASPER 4-Speed Transmission) 11th Clint Bowyer (JASPER 4-Speed Transmission) 12th Martin Truex, Jr. (JASPER 4-Speed Transmission) 22nd Joey Logano (JASPER Differential) 25th Mark Martin (JASPER 4-Speed Transmission) 32nd Brad Keselowski (JASPER Differential) Four drivers running JASPER Race Products are in the Chase standings. Matt Kenseth is third; Clint Bowyer is fifth; Brad Keselowski is seventh; and Kyle Busch is eighth. In the Nationwide Series, Joey Logano finished fourth and Sam Hornish, Jr. finished eighth. Both drivers run JASPER Differentials.