Dale Earnhardt Jr. pays tribute to dad on what would have been his 66th birthday

Dale Earnhardt Jr. took a moment Saturday morning to pay tribute to his father on what would have been Dale Earnhardt’s 66th birthday.

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"Happy Birthday dude," Dale Earnhardt Jr. wrote on his Instagram page alongside a photo of himself as a child with his dad.

Besides Dale Earnhardt’s fans, fellow drivers and other members of the Earnhardt family also paid tribute to the NASCAR legend.

It had already been quite a week for the younger Earnhardt. He announced Tuesday that he would be retiring at the end of the 2017 NASCAR season and he celebrated the creation of The Dale and Amy Earnhardt Activity Room at Nationwide Children’s Hospital in Columbus, Ohio, alongside his wife, Amy.

“Thinking about my pawpaw today on his 66th birthday,” Jeffrey Earnhardt, Dale Earnhardt’s grandson, wrote on his Instagram page. “Some (heroes) wore capes, he wore a fire suit. Big inspiration in my life.”