It goes back to 2007 when Earnhardt Jr. left Dale Earnhardt, Inc. for Hendrick Motorsports. That move essentially pushed Busch out of the team and started a rivalry that’s been simmering ever since.

It’s a little easier for those who want to call the shots from atop the pit box. That became evident after Dale Earnhardt Jr. won at Pocono Raceway in his debut as an Xfinity Series crew chief.

LONG POND, Pa. -- Dale Earnhardt Jr. has a 100% win rate as a NASCAR crew chief. The Hall-of-Fame driver, two-time Xfinity Series champion and current JR Motorsports team co-owner helped guide ...

Dale Earnhardt Jr. was pressed into emergency duty as Connor Zilisch's crew chief and helped land the 18-year-old prospect in victory lane in the Xfinity race at Pocono.

As the crew chief this weekend, Earnhardt will be directly involved in how Zilisch and the No. 88 team finish Saturday afternoon. “It’s way more fun than being the owner,” Earnhardt said.