Haas then moved Leffler to the Haas Automation No. 00 car in Busch for the remainder of 2003, and later all of 2004.
•
Denny Hamlin, who replaced Leffler in the No. 11 FedEx Toyota in late 2005 had his car repainted to resemble Leffler's variation.
•
In 2009 at the July Daytona race weekend it was announced that the No. 38 Toyota car would be shared with Kasey Kahne for the 2010 Nationwide season.
•
Shortly after being replaced at Haas, Leffler signed a deal to re-join Joe Gibbs Racing for 2005, taking over a newly created Cup team sponsored by FedEx.
In 2008, Wolfe worked with Braun Racing as crew chief of the #38 Great Clips Toyota driven by Jason Leffler in the NASCAR Nationwide Series.
Jason Mraz | Jason Alexander | David Jason | Jason Robards | Jason Grimshaw | Jason Kidd | Jason Kenney | Jason Isaacs | Jason Statham | Jason Newsted | Jason | Jason Priestley | Jason Aldean | Jason Scott Lee | Jason Schwartzman | Jason Mewes | Jason Ritter | Jason Donovan | Jason Bourne | Jason Aaron | Jason Williams | Jason Reeves | Jason McCoy | Jason McAteer | Jason Derulo | Jason Blaine | Jason Biggs | Freddy vs. Jason | Jason Williams (basketball, born 1975) | Jason Voorhees |
The company sponsored the Carquest Bowl (now Champs Sports Bowl) from 1994–1997, 3-time IHRA Drag Racing Top Fuel Champion Paul Romine from 1997–2004 and from 2001-2004 was associated with the No. 2 Team ASE NASCAR Craftsman Truck driven by Scott Riggs and Jason Leffler.