Can you see where it's leaking?
#12
Mine leaks about that much and I've drove it for 5 years with no problems. Just keep a check your fluids and top off as needed. Mine is the valve cover gaskets and Im not sure what else because of all the mess from them. I do tighten them with every oil change and it has seemed to help a lot. Wouldn't hurt to check yours. They are notorious for loosening up and leaking. Very easy to get at with a 10mm socket on an extension. Only 2 on each outer valve cover.
#13
#15
#17
#19
Quick question, when the u-joint is seriously worn like this, I take it there are symptoms while driving? Is there play in the shaft when its not in motion?