Think I read somewhere about putting a TC in a FXR frame. I was told by the principal at my dealership that if you take a TC out of a dresser below the year 2009 that the entire drive train, engine+trans will drop right into an FXR frame. I looked at the models on the floor and the front half of the frame from the swing arm to the front down tubes appear to be the same as an FXR. This would include the 6 speed trans also. However, the rear belt pulleys would need to checked as to alignment. Of course the cables, oil lines, and such would need to replaced. Manifolds, carbs, and fuel lines also. He was quite adament to the fact that the physical unit would fit the frame with no problems. Thought I would pass this on as this has crossed my mind quite often.