4 SPEED TRANSMISSION 65 66 Ser 10 D D w 4 11 axle 7 50 16 65 66 Ser 10 w 3 73 axle 6 50 16 7 00 15 7 17 5 65 66 G 10 w 3 36 3 31 axle 3860344 1 80 7 35 x 14 63 66 Ser 10 w 3 07 axle 3860341 1 80 6 0 16 6 50 16 6 70 15 7 10 15 8 15 15 7 17 5 8 17 5 7 00 15 7 50 15 63 66 Ser 10 w 3 73 axle exc 4 Spd 66 00 x 16 6 70 x 15 7 10 x 15 7 75 15 8 15 15 63 66 Ser 10 20 w 4 11 axle exc 4 Spd 7 00 16 8 x 17 5 7 50 x 15 7 17 5 63 66 Ser 20 w 4 57 axle exc 4 Spd 8 x 19 5 7 50 x 17 8 45 15 64 G 10 w 3 36 axle 3860345 1 80 6 50 x 13 7 00 x 13 green 22 teeth 63 66 Ser 10 thru 30 w 4 11 axle 6 00 x 16 6 50 x 16 7 17 5 7 00 x 15 63 67 Ser 20 w 4 57 axle 7 00 x 17 64 G 10 w 3 73 axle 3860346 1 80 7 00 x 14 64 G 10 w 4 11 axle 6 50 x 13 7 00 x 13 7 00 x 14 64 65 G 10 w 3 73 axle 6 50 x 13 65 G 10 w 4 11 3860348 1 80 6 50 x 13 7 00 x 13 7 35 x 14 GEAR UNITS Drive Driven Part Gear Part Gear Part Gear No Teeth No Teeth No Teeth 3689232 4 14 3704320 4 11 3760340 7 19 3689178 4 13 3707598 5 13 3760341 4 12 3689223 4 12 3709359 7 20 3760342 4 13 3692235 6 20 3752390 7 20 3760343 4 11 3692233 5 14 3752392 7 18 3760358 4 13 3695417 6 18 NOTE For usage of the above speedometer gears together with adapters group 4 329 for various tire sizes transmission and rear axle ratios use table below The following combinations are based on tires having highway type treads For other types sizes and odometer corrections factor sea Service and Mechanical Dept Product Data Book Section X11 A GEAR Speedometer Driven Part Speedometer List Part Speedomoter List No Gear Teeth Color Code Price No Gear Teeth Color Code Price 1359270 36 White 82 3860347 24 Yellow 70 1359271 37 Red 1 02 3866793 20 3 95 1359272 38 Blue 82 3866794 21 3 95 1359273 39 Brown 82 3866795 22 4 35 1362048 40 Black 82 3866796 23 4 35 1362049 42 Green 90 3866797 24 4 35 1362195 41 Yellow 1 50 3860348 25 Orange 70 1362196 43 Purple 95 3866798 18 3 95 2232670 12 stamped 2232670 6 40 3866799 19 3 95 2280103 15 stamped 207796 8 45 3866917 20 3 95 3816134 15 stamped 70566 9 00 3866918 21 3 95 3821556 15 stamped SW 448559 11 25 3866919 22 3 95 3860341 18 Brown 70 3925676 15 7 60 3860342 19 Natural 70 9774413 34 Lt Green 1 44 3860344 21 Red 70 9775187 45 Lt Blue 1 90 3860345 22 Green 70 9780470 44 Gray 85 3860346 23 Black 70 9780628 35 Pink 85 T 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATlON P A 1 REV 6 71 4 83 4 337 4 337