I bought a hardcore 450 guy's entire garage of 450 atvs and parts when he switched to side by sides, it was a lot of stuff , 6 bikes , boxes and boxes of engines , parts , etc , filled my truck and trailer and I had to leave one 450 there , was suppose to go back for it and never did as it was a hour and a half ride ---- there was a 6 ft long piece of pipe in the mix , on one end is half of a u-joint with the spline end sticking out , he told me it was a shaft straightener , slides over the splines for a tight fit and allowed you leverage to straighten a bent output shaft , he said he used it and it worked for him , I have never had need for it yet , if you were close to New Orleans you could pick it up and try it out , would be easy to make if you had a old u-joint