Originally Posted by T-bucket23
Maybe it is overheating and blowing it out of the overflow/vent. I think if the front seal was leaking it would leak all the time. You didnt say what model tranny it is but some of the chevys have an overflow/vent on the top. If it gets real hot a little fluid can cover a lot of area especially at highway speed.
Maybe the original leak is still leaking just not as bad. i would go back and look there first.
700-R4. It is not coming from the vent as far as I can tell by the spray pattern and the first small leak was up in front of the radiator where the aftermarket cooler is mounted...where the rubber line clamps to the cooler.