The other day for the first time I ever i had a problem with my transmission. I was under throttle and hit a bump hard, when I hit the transmission came out of gear and the RPM's flung to near red line since I was accelerating. Immediately got off the gas and it went back into gear. That was about 4 days ago. Today it happened again.....3 seperate times. All when I hit a bump or crack in the roadway that would jar the truck. Each time it would come out of gear, RPM's shoot up and i'de get off the gas and it would go back into gear.

I dont smell tranny fluid. I dont have any blinking O/D lights. What would cause this? Transmission still feels strong

 

anyone?