Ok I did something stupid this afternoon, not realizing at the time that the yoke and pulley on the motor end of the spider joint for a Bobcat 722 was a one piece unit I put it in my 20 ton press to press the pulley portion of, seems how I did need the pulley with the motor I'm putting in it and that I broke the pulley groves in a couple of spots removing it from the old motor. Well long story short I found out it was a one piece cast iron unit when it broke it to three (3) pieces. I have found replacement yokes but at the with the $200 price tag I'd like to explore cheaper options. I've found a Caterpillar yoke that looks similar in photos for a lot less. Does anyone know if they are interchangeable? Bobcat part # 6554829 vs Caterpillar part # 0659203. I've done a web search and was unable to find any results. Thanks, Mike