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Yoke Leak (As seen in engine/trans forum)

GOY

By GOY
in 1999-2013 Silverado 1500 & Sierra 1500

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GOY Enthusiast

GOY

Posted
Posted

(cut and paste from the engine/trans board for a wider audience in hopes of some solid advice.)

 

 

 

Hey guys - I recently purchased my second chevy truck (full sized this time), and I have what I'm hearing is a very common problem. I've ran a search in this forum and in the 1500,2500 forum with no real set answer.

 

How are you 88-95 lo3/lo5 A4 guys fixing the leaking yokes? I've heard everything from silicon, to the solution described here YokeLeak Fix (Left click, go to properties, copy the URL, and paste it into a new IE window.)

 

Now that yoke leak fix link solution looks practical, so I pulled the driveshaft, extension housing, and found, I don't have that lttle cup, let alone the o-ring! My only thought was the previous owner slapped a junkyard trans in the truck, and the trans came from a car. BUT THAT IS WHEN IT GOT INTERESTING! I went to dealership, ordered that O-Ring, and then tried to describe the "Cup." Well, an hour later, the parts counter guys informed me that they only find that cup for the 6.2 diesel in 1988, and not the LO3 or LO5 trucks.

 

So, is there a dealership error, and I am supposed to have that cup? Can I eliminate that hole weep hole all together? What would you guys do? If it helps, the truck is a 1988 c1500 lo5/A4.

 

 

PS - This is my first post, & it's been a pleasure to have read a lot of things you guys have written.

Mike C Enthusiast

Mike C

Posted
Posted

I own a 02, mine leaked under warranty, they installed the new style yoke, which also cured the driveline clunk. Mine was leaking from the plug at the rear of the yoke. Not sure where yours is leaking from? :devil:

GOY Enthusiast

GOY

Posted
  • Author
Posted
I own a 02, mine leaked under warranty, they installed the new style yoke, which also cured the driveline clunk. Mine was leaking from the plug at the rear of the yoke. Not sure where yours is leaking from? :devil:

 

 

 

 

Right from the weeping hole in the back of the yoke.

Mule Enthusiast

Mule

Posted
Posted

1995 - never leaked a drop. But I have a Tom Woods driveshaft, so the yoke may be different.

 

You mention the transmission, but with 4WD, it would be the back of the transfer case for me.

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