4 SPEED TRANSMISSION Part Driven I I I N0 Geer Teeth Calor Cade 3860033 21 3987918 18 Brown 3987919 19 Natural V rg 3860345 22 y V Green 3860346 23 Black 3860347 24 y Yellow 3860348 25 Orange 3987919 19 Natural 3987920 20 Blue 3987921 21 Red 3987922 A V 22 Silver 1968 CORVETTE 4 SPD TRANSMISSION SPEEDOMETER GEAR CHART NOTE Ta order Speedameter Gears ar Parts Trensmission Type Hear Axle Helio and 77re Sizsmust be known I 4 343 4 337 Y 4 329 REAR GEAR GEAR 4 329 AXLE SPEEDO SREEDO VV ADAPTER RATIOTIRESIZE 4 d DRIVE DRIVEN V SFEEDO 2 73 8 15 x 15 8 45 15 Q j 670 x 15 V 3905494 V 3987918 r 3 07 8 15x15 8 45x15 G70 x 15 7 I 6261794 3987918 3 07 F70x 15 I 6261794 3987919 3 08 8 15 x 15 8 45 x 1 5 V V G70 x 15 6261794 3987918 3 09 F70 x 15 4 5 3 6261794 3987919 3 31 8 45 15 6261794 3987913 3 31 8 15x15 F70x15 G70 145 6261794 U3987920 3 36 8 I5 15 F78x l5 G70 x 15 6 9 6261794 3987920 3 55 8 15 x 15 8 45 x 15 3 V GZO x1 5 6281794 e V V q 3 55 F70 x 15 V I r V 3860345 g 3270 8L15x15 F70x15 g K GZOxI5 3860345 I 3 70 8 45 x 15 626lT94 3 73 8 15x15 8 45x15 G7Dxl5 V a 3860345 4 3 73 F70x15 3860348 r r 4 10 8 15 x 15 8 45x 15 g 1 r v V G70 x 15 I 3860347 4 111 F70 x 15 2 r V 3860348 4 56 8 45 x 15 3 c V 1 3860345 3890575 4 56 8 15 X I5 G70x 15 I 3860346 3890575 4 58 F70x 15 J 3845079 3860033 r V g 4 89 8 l5 x 15 8 45x15 Y1 L i G70 x I5 3860347 3890575 GM PARTS DIVISION GENERAL MOTORS CORPORATION HEVROLETr14 4 3374 337 4 20 REV 6 79