4Running22
New member
I have never done this before. I’ve always owned front wheel drive cars. Is there dust cap on the zerk fittings that I have to remove first before I grease it?
Prop shaft greasing
- Thread starter Mijfwb23
- Start date
DougR
Member
this thread is awesome, thanks for posting
There are similar threads on the 3rd and 4th generation 4Runner forums. I passed some time while in quarantine browsing this one … Drive/Prop Shaft Greasing Guide Awesome at first and then 16 pages of information leads to :bored: :yawn: :boink:
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Dynamo
New member
Nope, but there may be dried grease and/or gunk that you should wipe away before you attach the grease gun.
4Running22
New member
I just purchased a grease Gun from Lock N Lube (The Green One) with a max PSI of 5000. Will that work?
Noticed some of you are using ones that are from 7500 to 8000 PSI.
Noticed some of you are using ones that are from 7500 to 8000 PSI.
honda250xtitan
New member
an original style grease gun works just fine so i'm sure whatever you bought will work too. as long as you can get up in the u joints to access the grease zerk
honda250xtitan
New member
right? my auto zone one works just fine :shrug:
Getting ready to do this again. I've done it once a while back, but can't remember which grease gun I used (I have two). One is SuperLube that I normally use for my UCA and the other is I believe a red grease (mobile or valovline?)
I recall some users here used two different types of grease, but also read that it's OK to use one type. If you were to pick one type, would you go with the red grease or SuperLube for all of them?
I recall some users here used two different types of grease, but also read that it's OK to use one type. If you were to pick one type, would you go with the red grease or SuperLube for all of them?
futz_roy
New member
If the red grease is NGLI#2 lithium complex then it is good for both.
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JeuTheIdit
New member
Bumping this thread for a question.
I have always greased the propeller shafts every oil change (5k miles). Spider joints until I see grease come out, and 2-3 pumps for slip yokes.
I have heard some people over greasing their slip yokes and fixing it by taking off the zerk fittings to let grease out. Yesterday I did this on both front and rear because I was curious, but nothing came out.
Is this an indication that I should be adding a little more grease, or are 2-3 pumps every 5k good enough?
I have always greased the propeller shafts every oil change (5k miles). Spider joints until I see grease come out, and 2-3 pumps for slip yokes.
I have heard some people over greasing their slip yokes and fixing it by taking off the zerk fittings to let grease out. Yesterday I did this on both front and rear because I was curious, but nothing came out.
Is this an indication that I should be adding a little more grease, or are 2-3 pumps every 5k good enough?
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You’re not likely to get a consistent answer to this question. It’s definitely not too much. Are you seeing grease come out the seal where the inner and outer portions of the driveshaft meet? If you don’t know, wipe them clean and monitor. If you never see any grease squeeze out of hat area, you’re not getting my grease where it needs to be to properly lubricate.
JeuTheIdit
New member
Thanks! I know answers are kind of subjective and I do not have any problems that I know of. Was just curious since I never taken of the zerk fittings before.
I believe some grease does come out of the seals. It is hard to determine right now though because I woolwax the crap out of it underneath every winter. In the summer I will clean it off, play with amount of grease added, and monitor more closely!
DougR
Member
I think you mean 2-3 pumps for the slip yokes. I give slip yokes 3 pumps and I've never observed yoke movement while greasing. No excess grease has appeared while greasing. No excess grease has been flung out ever. I smear a little bit of grease on the shiny slip surface to help lube the seal lip.
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1000MPH
Senior Member
Did you sit on the bumper?
I’ve never taken out the Zerk but I might next time.
The first time I did a lube job I pumped in around 20-30 pumps until I saw it move. When I heard that could blow the seals I reduced it to about 5 or less which still tends to move it a mm or so. I also wipe a small amount on the shiny part like DougR.
This thread on ih8mud goes into much more detail on how to do it right.
Lubing & zerks | IH8MUD Forum
I’ve never taken out the Zerk but I might next time.
The first time I did a lube job I pumped in around 20-30 pumps until I saw it move. When I heard that could blow the seals I reduced it to about 5 or less which still tends to move it a mm or so. I also wipe a small amount on the shiny part like DougR.
This thread on ih8mud goes into much more detail on how to do it right.
Lubing & zerks | IH8MUD Forum
JeuTheIdit
New member
Sorry... Yes I meant slip yokes lol. Sounds like I am on the right track, so won't worry too much about it but will still monitor it! I will however smear some on the slip surface, which I have never done before.
JeuTheIdit
New member
I did not sit on the bumper... Figured if there was too much it would come out without any kind of pressure, but based on some of the discussions you linked that reasoning is incorrect. The first time I greased them at 100k (likely never greased before that because it was dealer maintained), I did 10 pumps but did not allow any old grease to come out of the seal.
Might try to pump new grease in and see if any old stuff will come out past the seal. If not, then I will try some of the other options mentioned to "unclog" the seal.
That thread that 1000MPH linked is pretty good. The key is getting grease moving through the splines and out the seal during use so that you know the area that needs lubrication is getting it. But I would definitely be cautious and conservative with 100k miles without greasing. That seems like a recipe for a clogged seal that could result in applying too much force to the transfer case and you could actually put too much in.
And I would definitely not grease with the wheels off ground and driveshaft extended.
Nobody Special
New member
I know your reply is old, but someone bumped this so I will tell ya this...
On my 02, they were supposed to grease everything as per my request and $$$.
After awhile, at a stop, if would feel like I was lightly rear-ended.
They never greased them. :argue:
Part of the reason I avoid dealer service even for freebies to this day.
Unless it is a recall which I deem essential, I stay away.
702tripgen
New member
I think this is an area of maintenance that tends to attract quite a bit of overthinking. In the past I pumped the yokes on my land cruiser until they moved slightly and never blew the transfer case. I'm now just putting 5-7 pumps in when I do it and I think it's fine to be safe. Think about how many vehicles never get grease on the drivelines and they still get 200k plus miles out of them.
I do use moly in the slip yokes and lithium in the ujoimts. 2 separate grease guns.
I do use moly in the slip yokes and lithium in the ujoimts. 2 separate grease guns.
