FrankChandler

I have a pesky leak on my TH400, on a '69 Vista. After the car sits, the fluid appears to leak where the filler tube enters the case. I've replaced the O ring, and tried securing it with 'great stuff' gasket maker. Still no luck. Any suggestions for a newbie ? I've tried to pick up a new filler tube, but only found non-Olds ones that are the incorrect shape. Thanks

70 cutlass s

You might try to look under 69 Cutlass for parts like this. These kind of parts would be used on both Vista and Cutlass.

Here is a few link for places that sell parts.

http://www.thepartsplaceinc.com/ocat...&YearList=1969

http://www.fusick.com/cutlass.htm

http://www.paddockparts.com/Paddock/...B67FBFCD5BC2E4

http://www.yearone.com/

kaz442

New O ring and some silicone will work just have to clean the tube and the hole really good with some brake clean on a rag so the silicone will stick. JKaz

MJAKS462

Kaz , I am going to test your theary today when I refill the trans with fluid,
I had the same leak and redid it like you described , so it gets refilled today , but I wont be able to test drive yet. If it still leaks I will get a newer style tube with the rubber grommet instead of the oring , then it will be leak proff.

J-(Chicago)

I tapped it and plugged it. Same with the speedo gear and the detent. All 3 of those are luxury items.
I do enjoy the luxury of a drain plug though.

Oldsguy

J, you are living on the wild side. No speedo or way to check transmission fluid levels? Wow.

J-(Chicago)

It's like a differential now.
I put a deep sump pan on it, and fill until fluid runs out the hole.