I bought a used 1976 1175 in 1981 with 1600 hours. It is the best tractor I ever owned. I wanted to avoid the power-shift. It has the outboard planetaries and they are bullet-proof. I had a bearing go out in the tranny once, but other than that and routine things(turbo, injectors, hyd pump, tires, etc) it's been very good. Here's the amazing part! I changed the engine bearings once, but the engine has 10,600 actual hours and the heads have never been off. Still uses very little oil. The turboed 451's had blowby when new, so don't worry about that. It pulls as good as it did 20 years ago. I always changed oil at 100 hrs. and used Cenex 518 15-40 oil. Most of the hours were doing primary tillage. It now seeds, pulls the grain cart and blows snow. It pulls like a Cummins. You will never be sorry if you buy a nice 1175. I could go on,..... but I better stop!