Lol. Man I had to watch my own video. I would double check the bearing in the case and make sure they are good. If its been taken apart. Make sure it was assembled correctly. If all this is fine id say a very slight wiggle should be okay. It should be more sturdy once fully installed with spur gear installed. Hope this helps! We will be installing a OBR 9.4hp engine in the upcoming months. So make sure you subscribe! THANKS!