The 970 is 81. 90 drawbar HP and 93. 80 PTO HP according to the Nebraska Tractor Test. My Dad bought one new in '75. Not sure how many hours he has on it. It's been his loader tractor since about '80 or so. It's been overhauled once on both the engine and powershift transmission. I think the only thing that he has had constant problems with are the brakes. They either don't work, or grab all at once. Seems like he has them apart once every year. I have an 830 thats the same design and has the same problem. He has the 970, a 1070, a 2290, and a 1370.
Kim