My "O/D OFF" light on the dash started blinking.

Did you get a answer yet. Asfor me I had the same problem so I had the trans. oil flushed out and replaced buy jiffy lub then 5 days later it was doing the same thing again and gote worse the trani quit all together. I found out juffy lub put in dexron III oil with aditives instead off mercon V a sinthetic oil. and I believe that took the transmition out. I recomand that you have the tranismition drained and a new filter put in at a regular garage. it does have a filter not a screan as some places think.