TURBO I IYDRAMATIC TRANSMISSION A A 4 337 GEAR Transmission Speedometer Driven Gears Only Con t I 66 67 All T H w 3 07 2nd design 1362049 1 I 7 75 x 14 7 75 x 15 8 25 x 14 green 42 teeth Note 2 66 67 Ser 20 T H w 4 11 4 57A 5 14 7 00 x 17 7 x 17 5 7 00 x A18 I 67 All T H w 3 31 axle 1362196 1 8 45 x 15 purple 43 teeth ANote 2 NOTE 2 Used selectively A 67 Ser 10 20 Conv T H w 3 07 A A I axle 9774413 A R 6 50 x 16 7 00 x 15 7 75 x 15 7 x 17 5 8 00 x 16 5 8 15 x 15 8 75 x 16 5 9 50 A x 16 5 light green 34 teeth I 67 Ser 10 thru 30 Conv T H w 3 07 axle 9780628 A R 7 75 x 15 8 00 x 16 5 9 50 x 16 5 A I A pink 35 teeth A 1968 1970 GEAR UNITS Drive Driven I is Part Gear Part A Gear No Teeth A A No A Teeth 3707598 5 13 3760341 T 4 12 3752390 7 20 3760342 4 13 3752392 7 18 3760343 4 11 3760340 7 19 3987919 4 13 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 see Service and Mechanical Dept Product Data Book Section X 1 1 A A A I GEAR Speedometer Driven S Part Speedometer Part Speedometer No Gear Teeth I Color Code No Gear Teeth Color Code 1359270 36 A White 3866793 20 1359271 37 Red Y 3866794 21 I A 1359272 38 Blue 3866795 22 1359273 39 Brown A 3866796 23 A v 1362048 40 1 Black 3866797 24 1362049 j 42 Green 3860348 25 A Orange 1362195 41 Yellow e 386 6798 18 1362196 43 Purple 3866799 19 2232670 12 V stmpd 2232670 3866917 20 2280103 15 stmpd 207796 3866918 21 3821556 15 stmpd SW 4 448559 3866919 22 A 3987918 18 Brown 3925676 15 3987919 19 A Natural 9774413 34 Lt Green 3987921 21 9775187 45 Lt Blue 3860345 22 Green A 9780470 4 44 Gray A I 3860346 23 Black 9780628 35 A Pink 3860347 24 A Yellow A I A I A 1 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL 4 337 4 337 4 148 T I REV 5 79