stvaughn

My T-10 is leaking a little from the countershaft hole. I have the trans out of the car right now. How can I stop the leak?

Thanks,

Steve

plaidside

I never had a T-10 leak at the counter shaft, only Muncie's.
The stop gap fixes are silicone around the shaft with the Right Stuff silicone just before installing it or make a paper gasket to go between the trans and the bell.
The permanent solution is to bring it to a machine shop and have them bush it to the proper size.
You can give Larry at D & L transmission a call and ask him.
Joe

Dan Hampton

Joe is dead on. The only correct way to fix it is to have the hole bushed. While you have the luxury of having it out, you might want to inspect it for other issues and replace all the gaskets, etc. T-10s are notorious for chewing up 2nd and 3rd gears and synchro units. If you have one that grinds going into gear or has a tendency to pop out on decal, this would be a good time to fix it.

stvaughn

Thanks guys. I had the trans rebuilt last year to fix a syncro problem and what I thought was a front seal leaking. However there is still some seepage on the bottom of the trans. It is not much and if I didn't have a lift I probably would never have even known it was seeping. Just enough to wet the bottom of the trans when I had the car in the air for tinkering on something. Ran it all summer and pulled engine out to O/H it and looked at the front of the trans and determined that the seal is not leaking but the countershaft has evidence that it is seeping. Don't want to get into the bush solution so may try to make a paper gasket and RTV it.

Steve

Frankie the Fink

On my Muncie, I cut a piece of thin rubber tool box liner (based on a recommendation here) and slathered both sides of it with RTV and snugged the tranny back up with this RTV 'sandwich' over the countershaft hole....its been 7 months now and no more leaks.

Of course, I agree rebushing the hole is the ultimate fix but a quickee repair that might last you years is the one I performed....