I HAVE A 1999 FORD F350 CREW CAB 4X4 DUAL WHEEL P/U WITH V-10 AND AUTOMATIC TRANSMISSION. THE TRUCK HAS NOT BEEN ALTERED IN ANY WAY IT IS EQUIPED WITH 3.73 GEAR RATIO AND I AM THINKING ABOUT LOWERING THE GEAR RATIO. I TOW A 30FT FIFTH WHEEL TRAILER AND IT CAN REALLY PULL THE TRUCK DOWN ON A HARD PULL.
PLEASE GIVE ME SUGGESTIONS ON WHAT GEAR RATIO TO USE, DIFFICULTY TO CHANGE, COST, SPEEDOMETER CHANGES, AND ANY OTHER SUGGESTIONS THANKS