blackoutt
New member
Im having a hard time injecting grease into the joint. TIA
I'm not sure on the sizing or threads because they just work for me, they are the same standard size used on our driveshafts too. One thing I do is to put a small vacuum cap over the fittings so they don't get corroded or blocked. Harbor freight sells both a grease fitting kit and vacuum cap kit if you need to replace yours and start with fresh ones and caps.
