"The garage feels like a fraternity and it's nice to see good friends," said Busch, 36, a former Cup champion. "That feeling was home."
NASCAR suspended Busch indefinitely on the eve of the season-opening Daytona 500 last month after a family court commissioner in Delaware found Busch "more likely than not" committed domestic violence against his former girlfriend Patricia Driscoll.
The commissioner's report was in support of a no-contact order he awarded Driscoll, who alleged she was physically abused by Busch during an incident in his motor home at Delaware's Dover International Speedway last Sept. 26. Busch denied the allegations.
Busch agreed to follow a set of recovery guidelines from NASCAR, which were not disclosed, to be reinstated. And after Delaware prosecutors said last week that they would not pursue criminal charges against Busch, NASCAR lifted the suspension.
"Everybody is just excited that we're able to just kind of put it all behind us," Harvick said of Busch, who won at Phoenix International in 2005 when he drove for a different team.