Kathleen W Olympia Fields , IL October 30, 2015 Blender drive coupler teeth fell off First I googled how to repair it- watched the U Tube Video from AppliancePartsPro.s; I ordered the part, it was here in 2 days; Followed the directions on the vides and "voila" it's as good as new. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes