I need to tighten the nut but he shaft moves with it. The shaft it stripped. I've tried and adjustable wrench to hold the shaft in place while I turn the nut but it's not working. Anybody have a solution to this?
Nut:

Shaft(sorry for the sideways shot):

 

Omg, those pics turned out huge. Sorry.

 

If you are replacing it anyways, take a saw and cut it off. Otherwise, A good pair of vice grips should.

 

Thanks. I bought some vice grips and that worked. What a pain in the @ss.

 

Your welcome...vice grips come in handy quite often.

 

An impact would of done it

 

not always...I've had it where it spins with the impact too.

 

An impact would spin the nut just fine, but that wasn't what I needed. I need to spin the nut while keeping the shaft from turning with it. The vice grips worked but I had to tighten them down with everything I had.