TH350 leak= thru the speedo cable?

Just a quick question for those in the know:

I recently got my 54 running and took it on it's longest trip since (40 miles). The next morning I noticed about 4 tablespoons of clean trans fluid under it. It looked like it was coming from the speedo output (I didn't have a cable at the time). Does this make sense?

Thanks,
Aaron

 

no cable?..did you at least screw a speedo cable fitting on there with the cable inset into it?..if not and its open..it could leak..theres fluid back there in the tail shaft.

 

there's a seal in the driven gear housing on the shaft... go to a gm dealer or trans shop... they're cheap. may as well replace the o-ring on the housing as long as your down there.

 

^^ that seal too^^
thanks Decker..i couldnt jar my memory fast enough

 

i think there is a small oring between the driven gear sleeve and the driven gear
try a 1240382 part number at you local gm dealer i used a 77 malibu for refernce

 

Turbo 350 speedometer bullet ... and the "O" ring that goes around it.



This bullet is not for a Turbo 350 ( it is a 700R4 ) ... but you can see the seal inside the bullet. The Turbo 350 bullets have a seal in them like this.

 

Yeah, it had nothing on it. Went to autozone yesterday and got one that fit. Just wasn't sure if it should leak whether or not there was a cable connected.

Sounds like it "shouldn't" leak but isn't a major issue if the cables attached (therefor holding the fluid in)??

 

typical o ring

go to your local trans shop and talk to the manager and tell him what you got and talk hot rods and he will give ya one