Looks like the two teams will have to work something out so Junior can use the number 8 with Hendrick Motor Sports.
That would have to be a marketing headache if he would have to use another number. Plus all the Junior fans would have to scrap the old number 8 off their windows and put a new one on.
Here is a ESPN article on it:
Earnhardt Jr. not sure he'll be able to take his No. 8 to new team