So awhile ago I was running my Maxx and it flipped over, after flipping it right side up it wouldn't go in forward or reverse. I have tons of spare parts and a spare tranny so I swapped out the trannys. Fired it up and only went in reverse, opened both and cleaned with carb cleaner, reassembled without reverse, and still only reverse. So instead of taking it to the RC mechanic I decided I'd order a new FOC, and single speed setup so I know it's done right. To my surprise, still goes in reverse only. I have no idea what's going on, any all advice/suggestions is greatly appreciated, thank you ahead of time.