I HAVE A 99 1500 WITH A 5.2.. 3.55 GEARS POSI REAR.. IT IS A DOG OFF IDLE.. RUNS GREAT ONCE YOU GET GOING.. IT ALSO RATTLES OFF IDLE TO ABOUT 20 MPH.. IF IT HAS BEEN DEATH FLASHED HOW CAN YOU TELL???.. ONE OTHER PROBLEM.. FIRST THING IN THE MORNING AS I START TO ACCELERATE IT WON'T SHIFT PROPERLY.. AS IF IT DOESN'T KNOW WHAT GEAR TO GO TO.. FEELS LIKE A SLIP.. RPM'S FLUCTUATE.. FLUID LEVEL IS FINE.. TIGHTENED BANDS, REPLACED FILTER.. ANY HELP WILL BE APPRECIATED.....