This is a VERY scarce original Bennett overdrive for a F-20. It has most of the original mounting bolts and is in good used condition. It was saved from a tractor that was parted out many years ago and has lived on a shelf since then. It has the coupler half for the input shaft included. These overdrives really make road and parade travel nice! They are exceedingly tough to find in the wild or even at swap meets so if you’d like one to diversify your tractor here’s a pretty nice one. The pictures tell the story. I can be reached at 262 573 193 1 if you’d like to talk about it.