RE: Corona tail rotor gear box help !!!
There were times that I would go through a gearbox a day. Like Darth I easily went through 40 bucks of gearboxes and probably more, I use to have 2 as spares because they broke so easily. I got lucky and picked up one of Bret's when he first started making them off of E-bay, and he guaranteed that if I could crack it, he would replace it. Never had to take him up on that offer. Good luck.