2004 In 2004, Crocker won an opportunity to drive for
Ford Motor Company's
driver development program, and tested a Ford sprint for Bob East (racing) and
Steve Lewis that season. She also became the first female World of Outlaws driver to win a feature race that year in
Tulare, California.
2005 The following season, she left Ford to join
Evernham Motorsports' driver development program. During the season, she raced in the
ARCA RE/MAX Series and collected three top-fives, including a second-place finish, five top-tens, and two poles in six starts. She also made her
NASCAR debut that season at
Richmond International Raceway driving the No. 6 Dodge for Evernham in the
Busch Series. She started 42nd after a wreck in qualifying, and proceeded to finish 39th after another wreck. In her next start at
Dover International Speedway, she qualified ninth, but wrecked eleven laps into the race after being tapped by
Justin Labonte. Crocker sustained a cracked rib from the incident forcing her to sit out some races she was scheduled to compete in. She ran two more races that season, one for Evernham and the other for
FitzBradshaw Racing, her best finish coming at
Memphis Motorsports Park, where she finished 29th for FitzBradshaw in the No. 40 Dodge Charger. She also ran a pair of Truck races for
Bobby Hamilton Racing, at Phoenix and
Homestead-Miami Speedway. Crocker crashed in both races.
2006 In 2006 Crocker drove the No. 98 full-time in the Truck Series. She finished 25th in the Craftsman Truck standings. After struggling during the
2006 season, Evernham decided to close the No. 98 team. During her tenure as a Truck Series driver, a dispute between then-Evernham Cup driver
Jeremy Mayfield and Ray Evernham resulted in a series of lawsuits between Mayfield and Evernham. In Mayfield’s legal filings, he asserted that the No. 19 team’s lack of on-track success was due in large part to Evernham’s attention being focused on his personal relationship with an unnamed female driver. At the time, Crocker was the only female driver employed by Evernham Motorsports. Evernham confirmed in an interview with ESPN that the relationship exists and has hurt Crocker's career.
2007 In 2007, Crocker ran a select number of ARCA Series events. She won the pole for the season-opening ARCA race at
Daytona International Speedway in 2007. She however struggled, finishing 20th in the race.
2008 Following the fall 2007 ARCA race at
Talladega Superspeedway, it was confirmed that Crocker had left Evernham Motorsports. She ran a limited two-race schedule in the truck series for
Morgan-Dollar Motorsports, before she was replaced by
Red Bull drivers
A. J. Allmendinger and
Scott Speed. For the ARCA/REMAX race on September 6, 2008, she joined the broadcast booth for
SPEED. ==Personal life==