According to SceneDaily, Michael Waltrip will run the No. 51 in the Sprint Cup Series this season. Jayski was one of the first, if not the first, to report the number change.

Waltrip said:

The 55 was getting a little heavy. I hadn’t won with it. I felt real comfortable coming close to winning a couple of times. But I just wanted a change of pace. The 15 [I once drove] was available, but I didn’t feel like that was right. I wanted a variation of the 15, so I went with the 51.