Kurt Busch Wins the Kobalt Tools 500 Running a JASPER Differential A recap of the drivers running the JASPER 4-Speed Transmission and JASPER Differential is as follows: 1st Kurt Busch (JASPER Differential) Kurt Busch is currently 10th in the Chase Standings. Please see our news release for more information on the teams and drivers running the JASPER 4-Speed Transmission and the JASPER Differential this year.
11th Marcos Ambrose (JASPER 4-Speed Transmission)
21st Denny Hamlin (JASPER 4-Speed Transmission)
25th Kyle Busch (JASPER 4-Speed Transmission)
27th Martin Truex, Jr. (JASPER 4-Speed Transmission)
28th Sam Hornish, Jr. (JASPER Differential)
35th Joey Logano (Jasper 4-Speed Transmission)
36th Brad Keselowski (Jasper Differential)
40th David Reutimann (Jasper 4-Speed Transmission)
41st Dave Blaney (Jasper 4-Speed Transmission)
42nd Michael McDowell (Jasper 4-Speed Transmission)
The NASCAR Nationwide Series did not run this weekend.
