well got some pics of the old girl but they are not the greatest, sorry. So at the end of the day i guess i have an GP big bore with some up grades. yes if you could dig a little more would be very helpful. we will be restoring this tractor soon,and thankyou very much to everybody that has helped with the info. some of the pics show the crank case breather like the A and the oil suction pipe, it has an ensign K carb and the same big round air breather and muffler as chris gp has. How wide is a bean gp front axle ? these are sure a mysterious tractor.