Technical Information

HOW TO FIGURE YOUR GEAR RATIO

HERE ARE A COUPLE OF FORMULAS TO HELP YOU DETERMINE YOUR FINAL AXLE RATIO OR CHOOSE A RATIO TO SUIT YOUR DRIVING NEEDS. ALWAYS MEASURE THE TIRE DIAMETER WITH THE TIRES MOUNTED ON THE VEHICLE AND AT THEIR PROPER INFLATION.

RPM = MPH X TRANSMISSION FINAL GEAR X REAR GEAR RATIO X 336

TIRE DIAMETER

MPH = RPM X TIRE DIAMETER

TRANSMISSION FINAL GEAR RATIO X REAR GEAR RATION X 336

TRANSMISSION              1^st                        2^nd                     3^rd                  4^th                  5^th                   6th

         POWERGLIDE              1.76             1.00

         350 TURBO                  2.52             1.52            1.00

         400 TURBO                  2.48             1.48            1.00

           200-4R                       2.74             1.57            1.00          .67

           700-R4                       3.06             1.62            1.00          .70

        FORD C4 & C6               2.46             1.46            1.00

        TORQUE FLITE            2.45             1.45            1.00

        MUNCIE (WIDE)          2.52             1.88            1.47          1.00

        MUNCIE (CLOSE)         2.20             1.64            1.28          1.00

               A833                      2.47             1.77            1.34          1.00

             BWT56                    2.97              1.94            1.35          1.00           .84            .62