I have found there is a difference, though very small differences. Post up a picture of what you are looking for...somebody might be able to help.
I have bought that very harness off of ebay for my 1972 Grabber. Mine was an early 1972. It has more in common with a 1971 than a 1972. (No in-dash seatbelt lite, had non-retractable seat belts, for example). Look at all the wire colors, where they plug in, the types of plugs, etc...and see if it matches yours. If you need help...email me.