Hi all, i replaced the slip shaft seal today thinking that was my problem.


(this pic is before the seal change)

While i had the driveshaft off i noticed the slip shaft was pretty much hollow the whole way through. Seeing this i realized that the seal wasn't my problem. So the atf is pretty much running down through the slip shaft, causing leakage where you see. Am i missing something here? Any help would be much appreciated.

 

That sounds like a personal problem that i definitely couldnt help you with!

Now on your leak problem i really cant help with that much either, but are you sure its leaking agian or just the previous leak still draining and drying up? And are you sure the gasket is in correctly and was of good quality?

Maybe some sort of gasket or rubber plug goes into the hole??? not sure.

 

Yeah, it was the first title that came to mind. I cleaned everything up real good before putting it back together, to avoid any confusion. The seal is from Napa, and it is fully seated.



.......... and still with the drip

I should mention that it only leaks when the atf is warm. This pic was taken after a 5 minute test drive.

 

If its only doing it when its warm then id say its a gasket problem. Kinda like when a head gasket is about to go it will only leak when theres presure behind it (trucks running) and then when the truck is cool it wont leak anymore. But down the road the gasket will fail and really mess up your day!

Id say take it to NAPA store, show them what it does. Im betting 96% that its a bad gasket! And if the gasket isnt that expensive id just buy another one, make sure its the right one and that it isnt damaged in anyway!

 

Gasket? I've been reading through my book and see nothing about another seal or gasket that would have anything to do with the output shaft. Which gasket?

 

I think he is referring to the output shaft seal (not gasket). I would have personally gone with the OEM output shaft seal. But after i read it a second time and looking at the pics its doesn’t seem right that that input shaft of the driveshaft is hollow all the through. That doesn’t make any sense. Is it the original shaft? Does it look like there should be a cover in place at the end of the splines? Maybe it fell off?

 

It is the original slip shaft, and i couldn't tell you if there's supposed to be a cover there or not. This was my first time messing with the driveshaft on this truck. But fluid is obviously expected to run this far back if the slip shaft seal is needed.



Can it be something as simple as having a seal right there (where i circled in the pic)? I can seal that up no prob, but i don't want to do that and just be masking a more serious problem.

 

The slip yoke rides on the splines of the output shaft and a bushing inside the extension housing. What was the condition of the slip yoke? If it is scored or nicked it may allow oil to leak past the seal. There should be no up/down or side to side play in the slip yoke. Only sliding in and out of the extension housing. The bushing is supposed to eliminate the play.

Regards

Jean Marc Chartier

 

I didn't notice in your pic before but you are right. Mine is sealed at that end.
Disregard the previous post and get the end of the slip yoke sealed.

Regards

Jean Marc Chartier

 

That would be awesome if it really is that simple. But like i said, i don't want to seal that up if there's a more serious problem at hand. That opening isn't for venting purposes or anything like that?

 

That "hole" will allow water and such to enter the transmission. That is why it is sealed. These are sealed, so should yours be.





Regards

Jean Marc Chartier

 

Thanks for the pics, i feel much better now. But i seem to be having some trouble finding a simple plug to put in there. So i'm thinking i'll weld a cap on there, then grind the weld smooth. That shouldn't mess with the balancing, right?

 

At work right now, so i can't do much. But i did just talk to the dealership, $130 for a new slip yoke. If i was to replace, rather than repair i would want it to be a quality part. So if there's another place with quality yokes, at a non-dealership price, i'd be willing to look into it. Thanks for all the help so far guys.

 

Find a frost plug that fits and tap it in.

Regards

Jean Marc Chartier

 

I thought frost plugs were metal. How would it conform to the splines?