SPEEDOMETER GEAR CHARTS 1969 CORVETTE 4 SPD TRANSMISSION SPEEDOMETER GEAR CHART NOTE T0 nrdel Speedumeter Gears or Parts Trensmlssian Type Hear Axle Ratio and Tire Size must be known 4 343 4 337 REAR GEAR GEAR 4 329 AXLE SPEEDO SPEEDD ADAPTER RATIO TIRE SIZE DRIVE DRIVEN SPEEDO 2 56 F70 X I5 G70 X 15 G78 X 15 3924099 3987919 3925673 2 73 G70 X 15 G78 X 15 8 25 X 15 8 55 X 15 3924099 3987918 2 73 F70 X 15 3924099 3987919 3 07 8 25 X I5 670 X 15 G78X 15 6261794 3987918 3 07 8 55 X 15 Q 3924099 3987920 3 07 E7O X 15 F70 X 15 3924099 3 08 B 55 X 15 G70 X 15 G78X15 6261794 3987918 3 08 8 25 X 15 F70 X 15 3924099 3 31 8 55 X 15 6261794 3987919 3 31 8 25 X 15 E70x1E F70 X 15 G70 X 15 G78 X 15 6261794 3987920 3 36 8 25 X 15 8 55 X 15 F7OX 5 G7OX15 G78 X 15 6261794 3987920 3 55 8 25 X 15 8 55 X 15 G7OXI5 G78X 15 6261794 3 55 E70 X 15 F70 X 15 3860345 3 73 8 25 X 15 8 55 X I5 G70X 15 GYBX 15 3660345 3 73 E70 X 15 F70 X 15 3860346 4 10 8 25 X 15 8 55 X 15 G70 X 15 G78 X 15 7i m 77r 7 3860347 V rrrrr 4 56 8 55 X I5 626I794 3850342 3932220 4 56 8 25 X I5 G70 X 15 G78 X 15 6261794 3987920 3932220 4 56 8 25 X 15 6261794 3987920 3932220 4 88 8 25 X 15 8 55 X 15 G70 X 15 G78 X 15 6261794 3932220 1970 CORVETTE 4 SPD TRANSMISSION SPEEDOMETER GEAR CHART 4 337 4 343 4 330 REAR GEAR GEAR 4 329 KEY AXLE SPEEDO SPEEDO ADAPTER SPEEDO RATIO REAR TIRE SIZE DRIVEN DRIVE SPEEDO ADAPTER CORVETTE w 4 SPEED EXC CLOSE RATIO 3 08 F70 X 15 3987919 6261794 3 36 F70 X 15 3660343 6261794 3 55 F70x 15 3987918 6261794 6477965 867209 3 70 F70 X 15 3987919 6261794 6477965 867209 4 11 F70 X 15 6261794 6477965 867209 4 55 F70 X 15 3860343 6261794 6477964 867209 CORVETTE w CLOSE RATIO 4 SPEED 3 08 F70 X 15 3860346 6477965 867209 3 36 F70 X 15 3860348 6477966 867209 3 55 F70 X I5 3860345 3 70 F70 X 15 3860345 4 11 F70 X 15 3860348 r GM PARTS DIVISION GENERAIINIOTORS CORPORATION ZHEVROLET 14 4 000 GROUP 4 4 c REV 5 80