This video provides step-by-step instructions for replacing the lower drive shaft kit on a Husqvarna string trimmer. The most common reason for replacing the drive shaft is if it is damaged or if the trimmer head won't spin. Buy part #545180847 now: https://www.repairclinic.com/PartDeta... Additional string trimmer repair, troubleshooting tips, help finding your model number, and part replacement videos: http://www.repairclinic.com/RepairHel... All of the information in this drive shaft replacement video is applicable to the following brands: Poulan, Husqvarna, Craftsman, Poulan Pro Tools used: strap wrench Buy part #181CB now: https://www.repairclinic.com/PartDeta... Buy part #S144CB now: https://www.repairclinic.com/PartDeta... Connect With Us! / repairclinic.com / repairclinic / repairclinic / repairclinic Get 10% off all parts today: https://www.repairclinic.com/email-si... Check out our DIY repair tips blog: https://diy.repairclinic.com/ Don't forget to like and comment on this video, and subscribe to our channel!