The cost-cutting merger occurred Wednesday and leaves the status of DEI rookie driver Regan Smith in limbo.
Reed Sorenson, currently a Ganassi driver, is moving to Gillett Evernham next season.
In a release from the site of the season-ending Ford 400 Sunday in Homestead, Fla., Dodge said it will support Ganassi Racing's decision.
Earnhardt-Ganassi Racing is expected to be a four-Chevrolet operation since DEI owner Teresa Earnhardt also owns part of the Earnhardt-Childress Racing Technologies engine shop that produces Chevrolets.
"Having a partner like Chip (Ganassi), who is heavily involved on the competition side of the business, is an ideal situation for DEI," Teresa Earnhardt said in a separate release. "He has a long history of managing championship teams in the IndyCar and Rolex Grand-Am Series and I share his passion and goals of winning races and ultimately championships in the NASCAR Sprint Cup Series."