interesting, should have checked that out when the TW was off the truck.

i was picturing a needle fitting on the grease gun...and squirting as much grease as i could on the ball.

if the other ***** are completely non-greasable, seems that frequent greasing isnt necessary! what do you think, once a year?

 

Yeah you buy a needle attachment for your grease gun. I believe there is a flush needle fitting on the TW centering ball. Others may know better because I have not received my driveshaft yet. The TW website says to grease it 2x's a year. I bet if you put a good waterproof synthetic you can get away with once a year.

http://www.4xshaft.com/maintenance.html

 

I just had a TW shaft fail after a year and one month. I am about to send it back to them to fix as a spare and to see what went wrong but I suspect it failed because I didn't know about greasing the ball...
Sounds Kinky! I say once a month!