Wheeler previously worked for Joe Gibbs Racing from 2005 to 2018 as an engineer and a crew chief in both the Cup and Xfinity Series.

He moved over to the JGR-aligned Leavine Family Racing for the next two years, working as a crew chief in 2019 and then as the team's competition director for 2020.

[2] Even when Leffler left JGR, he stayed on the team with new driver Hamlin until the end of 2015.

11 team for three years, it was revealed in November 2018 that Wheeler would move to Leavine Family Racing for the 2019 Monster Energy NASCAR Cup Series to be crew chief for the organization's No.

[8] On September 24, 2019, Leavine Family Racing announced that Wheeler would be promoted to competition director for the team in 2020 while Jason Ratcliff would replace him as the crew chief of the No.