I put money time and effort into an OC-3-- tracks from W VA, engine from Ohio, auxillary transmission, rebuilt rollers and sprockets, and a paint job. I collected a lot of parts as I was fixing it up. I ended up selling it all. Few years later I got a direct start IH TD6, 62 series (1963) with only about 2000 hours on it. Nice tractor. I don't why, but I wanted another HG or OC3. I just found one and it followed me home last week. Had a dozer too big for it. It was mounted so that the pivot was high up behind the seat. I have not been successful trying to post a picture yet. The installation was well done and I think I can use part of the mount for an easy three-point hitch. The PTO/belt pulley doesn't turn when engaged. Hope to get the PTO going and cut the dozer down to HG size. It needs a grille and I'm planning on making one myself so that I can allow for the hydraulic pump.