I recently added a new front sprocket to my 2018 gsx-s1000 and like a dummy forgot to torque the nut down. As you can probably guess the nut fell off mid ride and ground down a portion of my threads. I don’t think they will tap back out so my only other option I can think of is replacing the gearbox. Can I accomplish this with the engine still in the bike? Or do I have to take the long route?