How to Replace a U joint John Deere 640

In this video we replace the drive wheel u-joints on the John Deere 640 hay rake. I included many tips that apply to most u-joint replacements.

[@JaxonSmit]

Where did you find the new ujoints

[@TheHooptyHaybalers]

Local parts store, measure cap diameter and outside lock up (cap to cap while pushed together) and they should be able to match up the size. John deere has them too but the catalog lookup only shows the "PTO" drive shaft not the ground drive shaft.