My truck bed ate 5 inches of my st croix 7'9" swimbait rod. Is it still good for 6in hudds? Or should i use it for some theing else i put a fuji tip on it so its a 7'4" now.

5" off a tip that Rod won't be good for much of anything. Good news is that a qualified Rod builder can splice that. Contrary to some assertions, properly repaired and you'll be hard pressed to tell the difference. 

Call St. Croix they have excellent customer service and will definitely send you a new rod if you pay the fee.

 http://stcroixrods.com/service-warranty/service-warranty-policies

 

I feel your pain, my favorite bladed jig St. Croix LTB broke on me Friday. I'll be sending it in and paying for the replacement.

 

I just went through this with a Lew's Custom Lite. I broke 2" off a 7'3 rod and they sent me a new tip guide. I wasn't real pleased with the rod after repair. 

I contacted them and they had me to cut out the section of rod with model number and mail it to them with $20 bucks. They said it's cheaper on the customer to do this and that the $20 is splitting the cost to send me a new rod. I'm pretty pleased, because I explained in the beginning it was my fault for damage.

If you saved the tip section you can do this, or have a custom rodbuilder do it:

http://www.rodbuilding.org/library/repair-oquinn.html

Previous comment is correct, if done right, you will be hard pressed to tell the difference between the original rod and the repaired rod.