Originally Posted by jram1735 Originally Posted by

That tranny in the video looks like a Golden Horizon. I had one and I had the same problem. I got the same response from GH when I finally got in touch with them and I used about 6 packs through it and still same thing. My ESC was running hot, batteries running hot, motor running hot. So I finally just put the stock tranny back in and everything resolved itself. You definitely do not want to continue running this transmission unless you want to buy a whole new system. But I did find what the problem was. I'm not quite too sure, as this has been about 2 months ago and I don't have it anymore, but on one of the sides where the bearings go, I want to say the spur gear side, the bearings don't seat down all the way as they did in the stock tranny. The bearings stuck up about 1-2 mm. I got a file and started to file down the slots for the bearings and the more I filed down, the better it got. So you may want to look into this but my hands got too tired from doing it, but if you have a dremel that will make it a lot better. But just do a comparison between the stock transmission and the aluminum the way the bearings seat in the slots and you will see what i'm talking about. If you need anymore questions, just let me know.