Dan, I used to think it was, but now I am not so sure. I think it was coming from the top cover. That job also looks like something that could be done after the tunnel is back in place if it really needs too be done.
I would agree with you though, better to do it while it is all open. So, how easy is it. Want to give me a step by step? If it is a no-brainer, I will do it. I have a lot going on right now and time is not my friend unfortunately. I just want to do the jobs on the list with the tunnel out. All the other stuff I was going to do will have to wait until next winter. I have been saying this for a few years now, LOL. Parts are still on the shelf!
I have got to get this car running and off the lift because I have work to do on the Mustang and Toyota. These are my DD's so they have to be the priority unfortunately.
So my short list of jobs at the moment while the interior is out are:
-Install a accessary power outlet
-tranny cover gasket
-New clutch slave and master cyl, Including fire-sleeving the line from the res to the Master. Real nice to do with the tunnel out because you can play with the adjustment and measure fork travel at the same time from inside the car while you are pushing on the clutch!
-Properly shim seats studs and install the crotch belts
-Drill two 1/8" holes in bottom of MSD box because it is mounted upside down
-Rewire MSD box so the POS and NEG wires go directly to battery per MSD instructions and per their Tech dept
- re-torque driveshaft hardware

David
I used the same type as David Kee sells. Would have to look for exact location did it so long ago. I believe it was top side, Half way between speedo hole and rear tailshaft bushing.
Craig

Just found it on the site. They have a 15.00 minimum order, so I added a rear seal and output shaft plug to get to the minimum. Their cheapest shipping is outrageous! They want 21.00 bucks for their cheapest option. These things could be put in a USPS mailer envelope for pennies. I might call them later to explore that option.
So, if it leaks out of the top cover breather, why is it not going to leak out of the newly installed tail-shaft breather? I would think it would leak easier from there due to the lower location and gravity vs. the top cover?

You should see what we in Canada have to pay, shipping, brokers fees, taxes and just" because we can " charges.
The cover and vent are located over a bunch of gears slinging hot oil every which direction, the tailshaft vent is not. There is very little oil being slung about other than a bit off the speedo gear.
All I can say is it worked for mine. Transmission is bone dry after many k's.
Craig.

Yeah, I have heard that about Canada...that sucks!

What you say makes perfect sense, thanks for explaining it. Can I drill this with the fluid in side? Maybe use grease on the drill or have a vacuum running next to the spinning drill bit to catch all the chips. Definitely grease on the tap for the same reason.

I have heard of people doing that, but I prefer not to.
To remove the tailshaft to drill, tap and thoroughly flush and blow out and ensures you don't end up with chips in there.
I have seen the damage caused by this in the past, not pretty.
Craig

understood, thanks

OK, now it is confirmed for sure WIDE RATIO
Thank you

Cool! See? That was easy!;):cool:

I thought somewhere in this thread you mentioned the drill and tap size and now I can't find it?
EDIT: Never-mind, I found it on the site just where I saw it...lol

"With this air vent the hole in the top cover is no longer needed and can be blocked to stop oil from leaking out of it constantly. Use a letter R drill bit and 1/8” pipe thread tap to install the vent on the top of the tailhousing. "

A letter R or a 21/64 drill bit with a 1/8" NPT
Should get it done.

Yes, I found it on his site as I said above.

I just ordered it from David Kee.

Kee is the go-to guy on Toploaders IMHO.

Yes, very knowledgeable and a nice guy. He also hooked me up on the shipping cost and minimum order crapola

Got it yesterday and I will be attempting it this afternoon. Cool looking little vent!

I build my road race toploaders like that. 1/8" npt to AN adapter, and run a hose up a little higher than the trans.

Look about halfway down the page in this article and you'll see one that I did.

Manual Transmission Reviews - Modified Mustangs & Fords Magazine

I see you put it exactly where I was going to put it. I was a little concerned about the parting line in the case, but I guess it does not matter.
Awesome article too, I read it twice.
Thanks

Done, here is a few pics

Very cool and different! What did you use for the vent cap and how did you crimp it?:cool:

I have one question,. While cleaning the gasket surfaces, I noticed a plug with a Phillips head. It wasn't tight so i took it out to clean it and re-install with thread locker. I discovered a spring underneath this thing and maybe it is loose by design. Decided to ask the experts before doing something stupid. So, what is this thing for and what is the procedure for correctly installing it
Dave