I inherited my dad's Cub Cadet 149. Nice tractor but needed some TLC. The Pto clutch lasted about half an hour then wouldn't engage. Upon inspection I discovered it had been worn out for years and readjusted untill the thrust button and fingers were worn away. Installed a rebuild kit, new thrust button, fingers, bearing and springs. Got everything back together and the PTO works as it should. My problem is I can't get the wear button to hold together. First try it lasted about 5 seconds. Took the mount to a machinist had him resurface the face to get a smoothe surface( It had worn away at an angle ).Reinstalled a new button and tried again. Seemed that all was well. It held up at idle and low rpm but at full throttle it gave way again. The wear button surface does not look parallel to the thrust button. Looks like it never has been since new ( mount looks welded crooked ). Could this be my problem ?