[davids2toys]

Originally Posted by RICK LAKE

davids2toys If you have no leaks, the trans is full to the plug hole, shifting is fine, put the plug back in the trans and go for a cruise. Bottom line, leave sleeping dogs lay. Don't start a problem where there is none at this time. Years are just numbers for time. I have 34 year rods, motor,crank, and t-15 trans in my jeep that I have not done anything too. It gets used for the bad snow storms. Add gas and drive. You are good. Rick L.

Understood, and I am of the same school up to a point. This trans does have a leak so it at least needs to be topped off anyway...so, back to the problem, even at a minimum of topping of, it is not a good idea to mix lubricants especially since have NO idea of what is in there at present. My thought is to just start off fresh!