Kluever began his career by racing motorcycles for over nine years before he moved into full-bodied stock cars at a local track. He raced stock cars in the summer and snowmobiles during the Wisconsin winters. Kluever was the 2000 Rookie of the Year at Dells Motor Speedway in Wisconsin. In 2001, he won the Madison International Speedway Late Model Track Champion, and the Midwest All Racing Series (MARS) Championship and Rookie of the Year. He began racing in the American Speed Association in 2002, and finished 10th in the final points standings. He finished seventh in the 2003 final points standings. In 2004, he had four Top 10 finishes in 13 races, but the series' existence ended during the season. In October 2004, he was given the opportunity to participate in the Race for the Ride at North Wilkesboro Speedway. He beat out 25 drivers to make the final round at Darlington Speedway. He beat out nine other drivers to win the seat in a Roush truck.

In 2006, Kluever was slated to race in six NASCAR Nextel Cup events in the No. 06 car during the season in preparation for a full season in 2007, beginning with the 2006 USG Sheetrock 400. However, David Ragan instead replaced the departing Mark Martin in the No. 6 AAA Ford full-time in Nextel Cup in 2007.

...
Wikipedia