well i borrowed a buddys post hole digger and the drive shaft was a bit seized,so i figured i"d mount it up spray it all down with some weasle nnalert and use the 3 pt to stretch out the driveshaft. To my surprise the shaft didn"t slide free and the 3 pt just started to lift for all it"s worth scared the bejesus out of me! I shut down the tractor and sometime later was able to pull some pins out and take the post hole digger of. Now my 3 pt is all jerky and wont fine adjust it"s all the way up or down in the middle it just jerks like crazy by the way it"s a 1960 841 gas 172. Thanks men JR