Don't judge, I'm new at this mechanical stuff...
So I decided to grease my u-joints for the first time since doing my own oil changes (~12 mo) Here's what I found:
1. Both the front and rear shaft have a u-joint with one Zerk missing and one u-joint with a Zerk in place. There is a hole on the missing ones where it looks like a nipple might have broke off.
2. The spline Zerk seemed to take grease fine and squirted out of the rubber boot. However, for the u-joint Zerks - I struggled to get them to take grease. I unscrewed the zerk and cleaned it - and confirmed it would take grease when it was off the uj. However, when I put it back on - it seemed to take grease for a bit then squirted out of the gun nozzle/fitting vs. coming out somewhere else.
It's my first time using a grease gun, and I got this one from Amazon
and am using the rigid connector and pushing hard against the Zerk. Not sure if this is normal for greasing a uj.
3. There doesn't seem to be any play in the joints - all seems solid.
So... what would you guys do - should I try and extract the broken Zerks, replace & re-grease. Or would you rebuild the shaft with all new UJ's at this point?