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I finally found a kohler magnum 20 to put into the JD 317. I am having trouble removing the short driveshaft ( that attaches to the flywheel ) from the u joint. Is there something holding them together or is it just all the rust and corosion? I am excited about this motor, it runs great and looks like it was well cared for and only has 686 hours on it.

Thanks

Mike
 

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The 317 has a stub shaft with key bolted to the flywheel. The drive shaft is free to slide on this. At the other end the drive shaft is connected to the rear end by a roll pin. I sawed the threads off of a four inch long quarter inch bolt and use that to tap the roll pin for removal. After removing the pin if rust is holding use Liquid Wrench and plenty of hammer to gently tap the drive shaft loose.
 
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