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How To Grease The Slip Yoke

Mossyoakglock

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Mossyoakglock Senior Enthusiast

Mossyoakglock

Posted
Posted

I have the dreaded clunk and I am going to grease my slip yoke this weekend if I can find the time. I don't have a problem removing the driveshaft but I want to make sure I'm greasing the slip yoke correctly. Does anybody have a picture of where to grease the slip yoke? Inside or outside of the yoke? I know this has been beat to death but I've searched and can't find a picture, so if anybody has a picture or a link to a thread with a picture, it would be appreciated.

 

I'm going to use the Valvoline Grease that I found at autozone that says it meets GM specs on their grease and it says it's forumulated for all GM vehicles. Is it ok to use this grease?

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Stevens03 Senior Enthusiast

Stevens03

Posted
Posted

You don't need any pictures. What you do is take the bolts out of the back of the drive shaft holding it to the rear differential. Pull the shaft out of the transmission. Look inside the slip yoke, you'll see splines. Put some grease on your fingers and pack it into the splines on the shaft. Once you feel you have enough in the yoke, re-install the shaft. You'll find it's harder to slide back in because grease does not compact. Re-install the bolts and your done. :cheers:

Mossyoakglock Senior Enthusiast

Mossyoakglock

Posted
  • Author
Posted

Thanks Steven. I figured once I tear it apart it would be pretty obvious where to grease so it was probably a stupid question. I'm trying to pass the time at work 'til 5.

 

Specs on the grease:

-Extreme-pressure, high-temperature protection

-Lubricates at temperatures ranging from -40°F to 400°F

-NLGI #2 Grade GC-LB Lithium Complex EP Grease

-GM 1051344; NLGI GC-LB; Supercedes GM 1051195

 

I should be good to use this grease on the yoke?

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post-49091-1255723700.jpg

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post-49091-1255723700.jpg

HawkScot Enthusiast

HawkScot

Posted
Posted

many folks also clean and coat the outside of the yoke lightly. some theorize that the seal is hanging up a bit keeping the yoke from sliding freely on the splines. Some also use emery cloth or steel wool to clean the rust off the outside of the yoke where it fits into the trans. If I had mine apart, I would take a few extra minutes and do the outside also, just to avoid taking it apart again if it helps....

Black02Silverado Senior Enthusiast

Black02Silverado

Posted
Posted

Don't forget to mark the shaft for alignment for when you put it back in. Some say it isn't required but it doesn't hurt to put it back together the same way you took it apart. :cheers:

jrod332 Enthusiast

jrod332

Posted
Posted
Gentlemen,

 

Can't you just grease the zerk fitting?

 

Ken

 

There are no zerk fittings on the slip yoke. The only fittings I know of are on some after market u joints. And thats at the other end of the drive shaft. Kinda hard to have a zerk fitting in the transmission. would be nice though.

dlstewart01 Senior Enthusiast

dlstewart01

Posted
Posted
Don't forget to mark the shaft for alignment for when you put it back in. Some say it isn't required but it doesn't hurt to put it back together the same way you took it apart. :cheers:

 

 

I'm thinking mine has a blind spline and only goes in one way.

Black02Silverado Senior Enthusiast

Black02Silverado

Posted
Posted
Don't forget to mark the shaft for alignment for when you put it back in. Some say it isn't required but it doesn't hurt to put it back together the same way you took it apart. :cheers:

 

 

I'm thinking mine has a blind spline and only goes in one way.

 

 

That would be great. I wasn't sure on the newer vehicles and I have not taken mine out to know if it does or not.

txab Senior Enthusiast

txab

Posted
Posted
Don't forget to mark the shaft for alignment for when you put it back in. Some say it isn't required but it doesn't hurt to put it back together the same way you took it apart. :cheers:

 

 

I'm thinking mine has a blind spline and only goes in one way.

 

 

+1 I'm pretty sure also. But mark it just in case. :jester:

 

 

Zerk fittings have been left off for several years now. That's why on the newer trucks there are only 2 places to grease

2COR517 Enthusiast

2COR517

Posted
Posted

Rotation of the driveshaft in relationship to the output shaft of the transfer case/transmission doesn't matter. I have a two piece rear shaft. The slip yoke between the two sections is greasable, as is the slip yoke on the front driveshaft.

pm26 Senior Enthusiast

pm26

Posted
Posted
Thanks Steven. I figured once I tear it apart it would be pretty obvious where to grease so it was probably a stupid question. I'm trying to pass the time at work 'til 5.

 

Specs on the grease:

-Extreme-pressure, high-temperature protection

-Lubricates at temperatures ranging from -40°F to 400°F

-NLGI #2 Grade GC-LB Lithium Complex EP Grease

-GM 1051344; NLGI GC-LB; Supercedes GM 1051195

 

I should be good to use this grease on the yoke?

 

No, this is just general purpose grease and not thick enough for this job. It will work, but not as effectively as recommended greases. I would try either the GM tech bulletin recommended grease (=expensive), or Marine Triple Guard grease.

Mark_in_Tulsa Senior Enthusiast

Mark_in_Tulsa

Posted
Posted
Thanks Steven. I figured once I tear it apart it would be pretty obvious where to grease so it was probably a stupid question. I'm trying to pass the time at work 'til 5.

 

Specs on the grease:

-Extreme-pressure, high-temperature protection

-Lubricates at temperatures ranging from -40°F to 400°F

-NLGI #2 Grade GC-LB Lithium Complex EP Grease

-GM 1051344; NLGI GC-LB; Supercedes GM 1051195

 

I should be good to use this grease on the yoke?

 

No, this is just general purpose grease and not thick enough for this job. It will work, but not as effectively as recommended greases. I would try either the GM tech bulletin recommended grease (=expensive), or Marine Triple Guard grease.

 

Where can you find that in town?

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