TH350 is puking all over everything...

[odin544]

....and its not even running.


So I bought this car ('69 Camaro) not too long ago. Decided to put it in a storage unit to keep it out of the weather since I have another project in the garage right now. Well the weather was nice so I decided to go drive the car. I get down to the storage unit and open the door and see fluid all over the ground. No big deal. I roll the car out and it looks like tranny fluid. I check all the fluids in the car and they check out ok. I figured with the high temps the tranny fluid expanded and puked it on the floor. So I get the car home and park it in the driveway. Next morning, same thing. Tranny fluid all over the driveway. So I crawl under the car and the fluid is obviously coming from the center of the slip yoke on the drive shaft. Not from a bad seal on the trans but the CENTER of the slip yoke. So I pul the drive shaft to find this.



I have honestly never seen a yoke like that. Is this normal? And if it is whats causing my trans to puke everywhere?

[b-man]

Some yokes are vented and sealed with an O-ring around the output shaft.

Others are not vented and don't use an O-ring.

Yours might be missing an O-ring.

I think it depends on the output shaft design, sometimes you have to plug that vent (weld it) to make the incorrect yoke work with your particular output shaft.

I'm sure one of our trans experts here will chime in.

[Jake's Performance]

Yep,
Vented yoke without the sleeve on the output shaft.
Weld the hole up and you'll be OK.