I've been layed up with a bad back and haven't had my 37 out for awhile so yesterday I got into and took it out and was crusing around 65 and put it into passing gear, got up to ninety and then nothing. Engine ran but no tranny. Was out in the country w/o any tools to speak of and sat there and let the tranny cool down and it worked fine. Ran it hard again to see if the probelm happed again but didn't. Got home and tranny fluid looked good and wasn't low. Any thoughts?