I 4 SPEED TRANSMISSION I 4 337 GEAR Transmission Speedometer Driven Gears only Con t y 65 88 Ser 10 w 3 73 axle 6 50 16 7 00 15 7 17 5 85 66 G 10 w 3 36 3 31 axle 3987921 1 7 35 x 14 63 66 Ser 10 w 3 07 axle 3987918 1 6 00 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 83 86 Ser 10 thru 30 w 4 11 axle 6 00 x 16 6 50 x 16 7 17 5 7 00 x 15 1 83 87 Ser 20 w 4 57 axle 7 00 x 17 4 84 G 10 w 3 73 axle 3860348 1 7 00 x 14 84 G 10 w 4 11 axle 6 50 x 13 7 00 x 13 7 00 x 14 e 64 85 G 10 w 3 73 axle 6 50 x 13 65 G 10 w 4 11 4 3880348 1 6 50 x 13 7 00 x 13 7 35 x 14 GEAR UNITS Drive Driven 1 Part Gear Part Gear Part Gear I No Teeth No Teeth No Teeth 3689232 4 14 3752392 7 18 3760342 4 13 3707598 A 5 13 3760340 7 19 3760343 4 11 1 3752390 7 20 3760341 4 12 3760358 4 13 1 n NOTE For usage of the above speedometer gears together with adapters group 4 329 for various tire 1 sizes transmission and rear axle ratios use table be ow The fol owing combinations are based on tires I having highway type treads For other types sizes and odometer corrections factor see Service and Mechanical Dept Product Data Book Section X 1 1 G I I GEAR Speedometer Driven I K Speedometer 1 Part Spaedometer Gear Teeth Color Code I No Geer Teeth Color Code A 1359270 36 White 1 3866793 20 I 1359271 37 Red 3866794 21 1359272 38 r Blue 3866795 22 l 1359273 39 Brown 3866796 23 1362048 40 Black A 386679 7 24 1362049 42 Green 3860348 I 25 Orange 1362195 41 Yellow 3866798 18 1 1362196 43 Purple 3866799 19 V 2232670 12 stmpd 2232670 3866917 20 2280103 115 stmpd 207796 3866918 21 1 3821556 15 stmpd SW 448559 Y 3866919 22 I 3987918 18 Brown 3925676 15 I 3987919 19 Natural 3987920 20 Blue A 3987921 21 977441 3 34 Lt Green 860345 22 Green 9775187 V 45 Lt Blue 3860346 23 Black 9780470 44 Gray 3880347 24 Yellow 9780628 35 Pink 1 1 1 1 1 1 A I GM PARTSDIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL REV 5 79 I 4 se 4 337 4 337