The speed lever on my Kitchenaid stand mixer broke years ago. The mixer itself was still functional, it was just uncomfortable to adjust speeds with the broken lever. I ordered a replacement almost a year ago and gave it a shot (via YouTube video) and couldn't get past one specific part. This morning, I decided to give it another go and I did it! I was also able to give the mixer a much needed thorough cleaning. I plugged it back in and voila! It works perfectly!