OK I HAVE A 53 CHEVY WITH THE ORIGINAL REAR AXLE. I STILL HAVE THE 4/11 GEARS AND WOULD LIKE TO GET SOMETHING SMALLER. I HEARD THAT LIKE THE 54 CHEVYS WITH THE AUTOMATIC TRANNY HAVE LOWER GEARS. IS THIS TRUE? IF SO WOULD THIS BE A GOOD SWAP. CAUSE I WOULD STILL HAVE THE TORQUE TUBE. ANY SUGGESTIONS PLEASE HELP ME OUT. THANKS