The Deadbolt had a noise in the transmission so before I went through the trouble of calling Horizon I figured I take it apart and see what I could find. The 1st thing that caught my eye was the small bearing for the input shaft would stay in the case and was loose. Tried pressing it in but when you flipped the case it would fall out. I ended up sticking 2 pieces of dental floss through the bearing hole then pressing the bearing in place. I then took a sharp exacto knife and cut the 4 tails off. The other issue I saw was the spur gear binding on the pinion. Looked like the spur sat to low. Now that I think about it the pinion could also be to high and might have been the easier fix. I ended uo putting a .25 shim under the spur. While I was in there I oiled all the bearing and used Purple Extreme on the plastic gears in the tranny. Normally I would have used some Red & Sticky grease but wasn’t sure how it would react with the plastic gears. Purple Extreme is a dry lube that goes on wet & I’ve had no ill effect with it on plastic. Put everything back together and now the tranny isn’t winning any longer.