WITH A 1TO1 FINAL RATIO IN A ONE TON THAT IS NOT GOING TO BE USED AS WORK TRUCK THE REAR AXLE RATIO CAN BE CHOSEN FROM A WIDE RANGE.IF YOUR TRUCK DOSEN'T DO MUCH HI-WAY 3.70 WILL WORK FINE A COMBINATION RATIO 3.54 TO 3.25.FOR ON THE HI-WAY MOST OF THE TIME 3.00 TO 2.73 WILL WORK.MY OLD 51 MERC TRUCK RAN HI-WAY WITH A 390 AND A BORG WARNER T18 WITH REASONABLE MILAGE WHEN I KEPT MY FOOT OUT OF IT.THE REAR RATIO WAS 2.75.GRANNY GEAR 1ST WORKED WELL TO CRUISE SLOW BUT THE TRUCK WAS A SLUG UNTIL 30 MPH THEN LOOK OUT.SO NOW MY 52CHEV TRUCK IS A 235 WITH A TREMAC 4 SPEED 4TH IS .78 3RD IS 1TO1 WORKS FINE WITH 3.54 REAR AXLE RATIO.SO YOU DECIDE WHAT YOU WANT AND GO FOR IT. AS I SAID TO THE WIFE "THERE IS A TRUCK UNDER ALL THAT RUST TRUST ME" R
