Yes. just so you know if you had used the search engine you would have found this answer. but the answer to your quistion is yes. the 910line drivers will work in the 913 line drivers. the fairways and hybrids will not work. 

I've spent over $500 on getting fitted for the right shaft and then the purchase of that shaft.  I absolutely  love this shaft.  So my question is, Can I purchase just the 913 head only, or is there going to be another shaft on ebay?

I wouldn't buy off of eBay, but you can get just the 913 head without the shaft.  Also your local golf store or shop at your country club could probably get you just a head.  I wouldn't trust eBay, and go to your club pro, he will get you hooked up with what you want, mine always does.

Hi guys,

Just to clarify, the 913 head is not available as an individual component.

- Mike