Transmission Leak (Driveshaft End)

[sims76]

I'm leaking a little fluid out of my transmission where the driveshaft mates with the transmission. This has been keeping up the past few days since I changed the clutch. It is not coming from the speedo cable. I still have the shift boot out and can see it collecting there.

 

Are there any serivceable seals on that end of the trans that I should have paid attention to?

 

I put in the reccomended 1.6L of fluid, but didn't drain it using the drain plug, because I just let it drain out of the end of the trans until the fluid stopped coming out. If I now have 1.6L plus possible extra fluid in there, would this cause the leaking I'm experiencing?

[JMortensen]

Tail shaft seal is the likely culprit if it's not coming from the speedo. It's the seal that seals to the end of the driveshaft.

[sims76]

Thanks jmortensen,

 

I didn't even know they existed. My Chevy buddy was surprised that I didn't replace that (referring to his GM transmission) and I was confused because I never read that about the nissan trans, but now I know.

[ezzzzzzz]

Also look at the seal contact area of the driveshaft slip-joint. If there is a groove at this location a new seal may not help. You'd have two basic choices at that point. Try to find a two-lip seal (I'm assuming the original is only single lip variety) that will place a seal lip in an unworn area or speedi-sleeve the slip-joint in the seal contact area. I've used these on many applications with great results. A speedi-sleeve is a very thin stainless steel ring of varying diameters and widths used to repair the seal surface area on balancers, yokes, etc. when excess wear prevents proper oil seal operation. Do a search on the web.