CHARLOTTE, N.C. — Dale Earnhardt Jr. will have a new crew chief starting with this weekend's race at Dover.

The team said Thursday that Tony Eury Jr. was replaced as crew chief of Earnhardt's No. 88 team. The two are cousins and have worked together Earnhardt's entire career.

They left Dale Earnhardt Inc. last season to drive for Hendrick Motorsports, but they've yet to find consistency despite driving for NASCAR's top team.

They have one win in 48 races with Hendrick and are 19th in points. They hit rock bottom with Monday's 40th-place finish at Lowe's Motor Speedway.

Team manager Brian Whitesell will be the crew chief this weekend. Lance McGrew will take over next week on an interim basis as team owner Rick Hendrick figures out a long-term plan for NASCAR's most popular driver.

After Monday's rain-shortened race, Hendrick's commitment to the pair had clearly waned. Following months of steadfast support, he was noncommittal about Eury's future with Earnhardt.

Earnhardt and Eury spent Tuesday and Wednesday testing on the road course at Virginia International Raceway. Hendrick told them he was splitting the pair upon their return.

Whatever route Hendrick takes, he's giving Earnhardt the full-time use of Whitesell and Rex Stump, the lead chassis engineer.

Earnhardt and Eury — first cousins and the grandsons of Robert Gee, one of Hendrick's first employees — have worked together in some capacity for Earnhardt's entire career. The two went through a rough patch that led to constant bickering at the end of the 2004 season when they raced for the championship at Dale Earnhardt Inc.

Earnhardt's stepmother, Teresa, separated them at the start of 2005, a move that led Earnhardt to finish a career-worst 19th in the standings. They were back together before the end of the season, but won just one race together in 2006 as Earnhardt's relationship with his stepmother rapidly deteriorated.

The next year, Earnhardt wrestled with the decision to leave DEI, then embarked on one of the most high-profile free agencies in NASCAR history. He settled on Hendrick Motorsports, and Eury went with him.

Although they opened their first season at Hendrick by winning the exhibition Budweiser Shootout and a Daytona 500 qualifying race, Earnhardt didn't win a points race until the 15th event of the year. That was at Michigan, his only victory all season.

Still, consistency put him at the top of the title contenders when the Chase for the championship began. But Eury and Earnhardt moved away from what got them into the Chase and finished last in the 12-driver field.