grease zerk on driveshaft

Has anyone tried to add a zerk on the rear driveshaft?

It looks like tom woods driveshafts have them and thought why not add one to mine.

just curious thats all

 

lots of videos on youtube

 

lol im so focused on using tacoma world tonight I completely spaced youtube. no videos popped up on my google search. just videos for greasing the factory zerks

 

No sense to add one. Replace the ujoint with a greasable one if so inclined. The SPL joints are stronger and less maintenance though.

 

You’re brave for making that comment.
I agree with you, I’ve been in more than one discussion over this topic, and I learned my lesson.
Lesson I learned was, the only good advice I can give is “replace when worn”.

 

i meant where the driveshaft goes into the yoke where you get the clunking sound from

 

doesn’t seem worth it. You can remove the boot and regrease it. I bet it’s something that needs to be done every 30k miles. I wouldn’t risk drilling into it for the effort required to periodically add grease but that’s just me. I am running a driveshaft from a 4runner and it has a slip yoke grease fitting from the factory, so I fill that puppy up every 5k when I check the ujoints. If I didn’t have a zerk I’d probably never check it unless it made noise lol

 

I agree with you. I will just learn to get better at dropping the driveshaft.

 

Are there risks of overgreasing the spline zerk?

 

Yup, the seal isn't as tight and water is more likely to get it.

Most techs and DIY'ers like to push grease in until they see it come out.

I was always taught to pump until you hear a crackle, typically 4 pumps.

I run sealed units now, always and forever. Same with tie rods and ball joints.

 

none I am aware of, it might cause binding if you fill the voided space entirely with grease but that’s me thinking out loud with no real world experience with that scenario. so I just give it 2 or 3 pumps, any grease is better than none.

 

I’ve never had any issues, if there is a boot involved I typically go easy and watch for the boot to expand slightly. If you grease it fast and too much you “might” blow the boot off its seat.

As for u-joint. I usually grease until I hear it crackling.
I can’t say I’ve ever seen any real damage from having the grease come out all 4 caps.
I’ve actually heard of 1 case where one of the passages was plugged and wasn’t greasing one of the caps. Every once in awhile, I will grease mine until it comes out all 4 caps.
Is this a bad thing? I don’t know. But it’s what I’ve done and so far I’ve been ok.

 

Your u-joint greasing method sounds correct to me. I pump them until clean colored grease starts to come out of each side.

 

x3

And you get the added benefit of corrosion protection from the extra grease that is flung upward off the u-joint and sticks to metal above.