TH350 Transmission Fluid problem

[caribbee]

We have a stock TH350 in a '76 C3. We replaced the radiator with one from summit racing without the oil cooler. We then attached a B&M transmission cooler to the transmission and it flows well. Once the engine is running the fluid level is fine but as soon as we turn off the fluid level goes sky high. Some guys here told us it might be that the cooler is too high but we have it horizontal at the lowest point in front of the radiator with all the connectors stock equipment. It gets so full when off that it leaks a liitle out the seals. But again when started the fluid level goes down to below full cold. Any suggestions?

[bossvette]

I had a TH350 in my YT that used to do that; it would puke out about a pint every once in a while. I never did figure out what was causing it but it did it for years until I finally replaced it with a 700R4 and took it to the scrap yard.