Quote:
Originally Posted by gmebey
Here is the short version of the long story of the leaky TH400, look at my past post and you will get the whole story.
Now that I have freshly rebuilt transmission I still have a leak and at this time I suspect that the cast pan is my source of the problem. I did check the flatness of the pan, and it seems to be OK. But it is leaking at the rear around a couple bolt holes. This makes me thing that cheap cast pan has insufficient area around bolt holes….I think.
Anyway here are my questions:
1) Has any one tried a cheap cast aluminum pan with success of NOT leaking? Digging on the internet I have found other blogs, post…etc that claim that the surfaces of the cheap pans are to smooth, they are poorly designed…etc.
2) Since I’m considering replacing the pan with a better quality one. Suggestions please?
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I have used a JW Performance Transmissions deep cast aluminum pan on my truck since 2006 without a single leak. It may not be the least expensive but it is tight.