When my TH 350 trans is cold it shifts great, when it gets hot the 1-2 shift seems ok but the 2-3 shift is way late...if I get it up to around 50mph and feather the throttle then it will slide into high. Once it gets into 3 it seems normal. Any thoughts about what I might do? I thought about the governor and that might be it. No leaks or any other problems. Thanks, Karl.