here's a brand new 2 speed motor,will fit any IHC with a eaton 2 speed rear end.on the end of the motor,there are 3 long oval raised flat spot's with these # 's on them.7 1 59 G, 1536M6V, 40634...$125 shipped in the USA. ( jeffdotlimaohio@gmail.com ) will fit- 1600,1700,1800,1890 etc.EATON IHC 2-speed rear end motor NOS 001.jpgEATON IHC 2-speed rear end motor NOS 002.jpgEATON IHC 2-speed rear end motor NOS 003.jpgEATON IHC 2-speed rear end motor NOS 004.jpg i also have a 2-speed NOS shifter switch that bolt's to the gear shift lever with the red knob.would make a great little package for your IHC truck. ( $65 )