i have a 743 bobat, just got not to long ago and the key broke on the coupler that goes on the shaft right behind the motor. i pulled it apart and noticed that my shaft is bent. i have the motor out right now but need to know what is involved to get this shaft out? do i pull the whole pump assembly? or can i get the shaft out somehow with everything still in the bobcat? any help is greatly appreciated as its sitting in my garage in pieces lol. thanks in advance