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This is on my Pontiac I recently bought,I had a couple of transmission leaks,one coming from speedometer cable gear,so replaced it,now narrowed it down to the bracket where cable is hooked up,but is tight,is their a seal here or O ring. Hope you can see arrow,but coming from between nut and housing.
There is a seal in there. There is also a tool to remove that seal without having to take the transmission out or apart.... as long as there's enough room to get it in over the shaft.
M
Golferdad
I recently did the gear selector shaft seal on my 200-4R. Allegedly the tool is the same for lots of GM trannys.
I got repair kit that came with the tool and the seal. I'll go look it up in a second....
Here is the one I bought. I had to file the inside of the tool to make it fit over the shaft.... ended up nice and snug and I got the seal installed. No leaks. I'd try a different outfit but this one will work.... but it should work without me having to work on it.
I have used a file to remove any sharp edges/burrs on the shaft before sliding the seal into place.
Then I applied a little grease to the shaft and used a long socket and a small hammer to tap the seal into place...
no need for a special tool that has to be "modified to work".
That's a valid point but I ordered the kit since it also came with a seal & the extractor for the old seal.
Inexpensive enough, just kinda disappointed that it did not fit over the shaft right off the bat..... not a big deal, but really?
The extractor did work wonderfully for removing the old seal anyway.
Originally Posted by doorgunner
I have used a file to remove any sharp edges/burrs on the shaft before sliding the seal into place.
Then I applied a little grease to the shaft and used a long socket and a small hammer to tap the seal into place...
no need for a special tool that has to be "modified to work".
I have the same leak on my '80. Unfortunately I went through 4 transmission pan gaskets before I figured it out.
To remove to old one (without the special tool.....), remove the nut holding the shift linkage to the shaft, and carefully slide the linkage off. Drill a hole in the metal part of the seal with a small drill bit. Use a small hook (or thread in a small screw that fits in the hole) and pull the seal out. Be sure to inspect the area for any metal debris from drilling, but most/all debris will be removed when the seal comes out. Smooth out the end of the shaft with a fine file. Fit the new seal over the shaft after lubing the shaft. Tap the seal in place using a long reach socket that fits over the shaft. Replace the linkage and nut.
I have read that some folks are even putting two seals on the shaft just to be "Doubly Sure it won't leak".
Transmission leak
