what i mean is that when i am traveling at 45 mph i would floor the gas pedal to try to get around a car but in stead of my truck speeding past the car, my truck wont move much faster and the rpm will hit redine then shift to the next gear. But if i dont floor the gas pedal and stay steady and constint with the pedal it will shift fine and go through all the gears fine. but usually when i am driving normal the truck shifts kind of hard going into 2nd gear. The sound i hear when i take off is a pop noise. i am told that is could be the u-joint. is this true? and what will happen with a bad u joint?
thanks david