Measured end of pto shaft to center of hitchpin on baler and it is 15 inches. The book says 16 inches needed. Put tractor/baler in tight enough turn(maybe 40% as tight as a full turn) and engaged pto and got the noise I was hearing in the hay field. Got out to listen and pretty sure it is coming from baler driveshaft. It did shorten up about 2 to 2.5 inches when I turned but didn't bottom out. Still had about 1 to 1.5 inches. I think the conclusion is to lengthen out the drawbar but problem here. My drawbar only has 2 holes up underneath and they are about 8 inches apart. If I lengthened out the drawbar, I'm afraid the pto shaft will be extended too far. Am I wrong? The only thing I can think to do is remove the drawbar and have another hole between existing ones milled into it. What are you guys thoughts?