BROOKLYN, Mich. -- The Pure Michigan 400 had some shocking moments Sunday, including a verbal feud between Hendrick Motorsports teammates Jeff Gordon and Dale Earnhardt Jr.

"Tell the f------ 88 he can thank me later for not wrecking him," Gordon said on his radio during the race. "That was f------ stupid."

Earnhardt had moved in front of Gordon midway through the race with a pass Gordon felt was a little risky. But Earnhardt was shocked when he heard Gordon's reaction.

"What's the deal with the 24?" Earnhardt said on his radio after passing Gordon. "Does he have a problem with me?"

A team member told Earnhardt that Gordon said he should have wrecked him.

"Wrecked me?!" Earnhardt yelled. "He was slower than me. I don't know what I did, but I'm sorry if I did something."

Team owner Rick Hendrick sided with Earnhardt: "Man, you didn't do anything. Just drive that thing to the front."

Earnhardt finished fourth. Gordon finished a disappointing 28th after an engine failure, but later talked about the incident in the garage.

"He took me four-wide, then slid up in front of me in Turn 2," Gordon said of Earnhardt's pass. "I had to check up and it could have wrecked all of us.

"It wasn't the smartest thing to do, especially to a teammate. But he chose to do it and it all worked out. I don't care who does it, I'm going to show my displeasure if they do something like that."