Tranny leak that keeps getting worse

[67johnny]

Maybe give Art a call... I would bet he has what you need !
https://www.cpttransmission.com/

 

[camaro71/holland]

1. Let's keep calm and get more specific. 2. Are we talking about the seal on the manual shaft that is connected to the shift cable?
3. If so, the seal is included in every regular kit or can be obtained as single piece. Get a puller/installer as shown in the picture. It helps you removing/installing this seal on most common GM transmissions without pulling the pan.
4. If this isn't the seal you're talking about, go back to the first point.

 

[MJwrabbit]

This is a link to the part number, it is a linkage seal, and is discontinued. A trans shop will have an aftermarket supplier.
https://www.gmpartsgiant.com/parts/gm-shaft-rem-8678940.html

Thats where i got that number a tranny shop. He said its hard to find and will look but wanted me to look too.

 

[MJwrabbit]

I have also seen trannies leak when a car sits a long time. Seems like maybe the converter drains back into pan and overfills it. then all kinds of things leak. I have a friend with a C6 and he puts a baster pan under it when he's done driving the car in the fall. It leaks, he strains it, puts it back in in the spring, doesn't leak while he's using it.

the tranny guy also told me that. Cause when it drains back it gets high enough to where the leak is. I just kills me to have bought a rebuilt tranny to have it leak worse. Its out of warranty.

 

[MJwrabbit]

1. Let's keep calm and get more specific. 2. Are we talking about the seal on the manual shaft that is connected to the shift cable?
3. If so, the seal is included in every regular kit or can be obtained as single piece. Get a puller/installer as shown in the picture. It helps you removing/installing this seal on most common GM transmissions without pulling the pan.
4. If this isn't the seal you're talking about, go back to the first point.

View attachment 127931

the tranny guy called it a manual lever shaft kit.

 

[MJwrabbit]

Maybe give Art a call... I would bet he has what you need !
https://www.cpttransmission.com/

I will give that a try

 

[camaro71/holland]

the tranny guy called it a manual lever shaft kit.

Then it's the seal from the picture. Commonly available in kits and as single piece from suppliers. You only need a new/good used shaft if the old one is worn by the seal.

 

[1934chevycoupe]

When i bought my '70, it was supposed to be a rust free, done car. When i got it, there was a trans leak. I have a lift, so replaced the pan gasket and new filter. Still leaking. Turned out the pump bolts were stripped, and it was a slow migrating leak from the front. Fixed that. Bought a Tremec Magnum.

 

[Bentley]

[QUOTE="1934chevycoupe, post: 3872698, member: 71261" Fixed that. Bought a Tremec Magnum.[/QUOTE]

 

[Progun3400]

You can purchase the puller/installer with linkage shaft seal included for less than $20 on Amazon..
https://www.amazon.com/Transmission-Shifter-Remover-Installer-700-R4/dp/B0153WO9WO