Hi,
Been chasing and fixing trans leaks for a while and fixed them all except for one odd one. It's a TH350 automatic and I used a UV dye to pinpoint leaks and I see a faint trail of dye that has been flung onto the underbody and my exhaust pipe at the X-pipe union. Seems like it's coming from the yoke. The tailshaft bushing and seal were replaced when I had the engine out by a shop the seal area is dry. There is a little bit of fluid that has gathered on the crossmember and that appears to be where it's dripping onto my garage floor. It's a very small amount but the dye being flung on the underbody and the exhaust pipe had me confused. Is this normal operation or is there a leak at my yoke?

 

Some yokes have pinhole in center of plug ..some plugs leak..sometimes yoke has groove
worn at seal location
New no longer = good...
Worn tailshaft bushing
Tailshaft castin failure / porosity...
Seal not lubed upon installation & burnt
Seal to housing not sealing..wrong seal

If you would...please call me so I can diagnose this better by sound you make imitatin th car & only thing stranger is more often than not , I know exactly what is wrong with it

anway to strap a camera down there n ride out ?
Brakeclean , ride , inspect..repeat...

 

Not making any sounds and no noticeable changes to drivability. Only notice it after car sits a few days in heat of garage. Whatever fluid is accumulating on the crossmember leaves a couple of drips on my floor drip tray. Shining my UV light around the yoke found the dye on the underbody. Tail shaft bushing and seal are new. Is there a separate seal on the slip yoke? Was thinking of replacing with a new yoke and universal joint that doesn’t have a weep hole just not sure of how many splines I need.

 

Heard about new virus that china came out with last year...new coke..new kick in th giblets ???
what tranz do you have ?
Brake clean & seal yokes weap hole...hole probably has no baffel...bumpy road makes for lot of yoke travel in & out & are we seriously talking bout couple of drips insteada drinkin cold beer & fishin ¿?¿....what ever you do..dont look under my car !

 

Just saw this in an old Journey with Olds issue.