1 SPEEDOMETER GEAR CHARTS 4 SPEED TRANSMISSION DRIVEN GEAR V Part Driven No Gear Teeth Color Cade 3860033 21 39879l8 18 Brown 3987919 19 Natural 3860345 22 Green 3860346 23 Bleek 1 3860347 24 Yelluw 3860348 Z5 Orange 39879I9 19 Natural 3987920 20 Blue 3987921 21 Red 1 3987922 22 Silver 1 1968 CORVETTE 4 SPD TRANSMISSION SPEEDOMETER GEAR CHART NOTE T0 order Speedvmerer Gears nr Paris Transmission Type Rear Axle Ratio and Tire Sfze must be E known 4 343 4 337 4 325 REAR GEAR GEAR 4 329 1 AXLE SPEEDO SPEEDD ADAPTER 1 RATIO TIRE SIZE 4r4 DRIVE DRIVEN SPEEDO 1 2 73 8 15x15 8 45 15 G70 x 15 3905494 3987918 4 3 07 8 15x15 8 45x15 G70x 15 6261794 3987918 1 3 07 F70x 15 6261794 3987919 3 08 8 15x15 8 45x15 1 G70 x 15 6261794 3987918 3 08 F70 x 15 6261794 3987919 z 3 3I 8 45 x15 6261794 3987919 1 3 31 8 15x15 F70x15 1 G70x 15 6261794 3987920 1 3 36 B 15x15 F70 15 G70x 15 6281794 3987920 1 3 55 8 15x15 8 45x15 G70 X 15 5261794 1 3 55 F70 x 15 3860345 3 70 8 15x15 F70x15 1 G70 x15 3860345 3 70 8 45 x 15 6261794 3 73 8 15x15 8 45x15 G70 x 15 3860345 3 73 F70 x 15 3860348 4 10 8 15 x15 8 45 X15 G70 x15 3860347 1 4 11 F70 x 15 3860348 1 4 56 8 45 x 15 3860345 3890575 4 56 8 15 x15 G70 x15 3860346 3890575 1 4 56 F70 x 15 3845079 3860033 1 4 89 8 15 x15 8 45 x 15 G70 x 15 3860347 3890575 1 1 GM PARTS DIVISION GENERAL MOTORS CORPORAT ON CHEVROLET 14 1 REV 5 80 4 3 C 4 000 GROUP 1