He also works as a consultant for Spire Motorsports, a NASCAR Cup and Truck Series team.

24 team also finished with 30 top-10s, setting a new NASCAR modern era record for most top 10s in a single season.

On April 3, 2011, Earnhardt Jr. held the lead late in the race at Martinsville Speedway, but was passed with less than 5 laps to go by Kevin Harvick who would drive on to victory.

[4] In the very next race at Kansas Speedway, Letarte had called Earnhardt to pit road thinking that no drivers would be able to make it to the end on fuel.

[5] Letarte led Earnhardt Jr. back into the Sprint Cup Chase for the Championship for the first time since the 2008 season.

[8] On February 23, 2014, Letarte and Earnhardt Jr. won the 2014 Daytona 500, narrowly edging out Denny Hamlin and Brad Keselowski.

[9] On June 8, 2014 Letarte and Earnhardt earned their second win of the season after Brad Keselowski moved up behind the lapped car of Danica Patrick to remove a piece of trash from his grill.

The Earnhardt/Letarte pair triumphed again at Pocono on August 3, and later collected what was Earnhardt's first Martinsville clock when the two scored a victory in the Goody's Headache Relief Shot 500 at Martinsvillle Speedway on October 26.

Letarte briefly returned to the pit box for the 2021 Dixie Vodka 400 at Homestead–Miami Speedway in February 2021, when he took over as interim crew chief for Corey LaJoie's No.

7 Spire Motorsports Chevrolet while regular crew chief Ryan Sparks was held out due to COVID-19 protocols.

[12] On January 9, 2014, it was announced that Letarte would be leaving Hendrick Motorsports after the 2014 season to become an analyst for NBC Sports.

His first race was the 2015 Coke Zero 400, incidentally won by Dale Earnhardt Jr.[13] After five years with the crew, Letarte said he has seen himself progress as a broadcaster.

[14] Letarte had to miss the 2022 NASCAR Cup Series Championship Race at Phoenix Raceway due to having an emergency appendectomy.

[15] On November 18, 2024, it was announced that Letarte would join Prime Video and TNT's coverage as a color commentator in the next TV contract (from 2025 to 2031) while continuing to work for NBC.

This reunited him with Dale Earnhardt Jr. after they worked together in the booth at NBC and as driver and crew chief at Hendrick Motorsports.