250 350 375 400 TURBO HYDRAMATIC 1974 Chevelle with 250 350 exc Monte Carlo Code Driven Gear Teeth Color Code Adapter Code Sleeve Assy A 3987921 21 Red G 3950354 K 345215 B 3987920 20 Blue H 3950352 C 3987922 22 Silver I 3932220 D 3987919 19 Natural J 6273218 E 9775187 45 Lt Blue F 1362196 43 Purple 2 73 Ratio 3 08 Ratio Ratio Tire Drive Gear Drive Gear Gear Size 62617851 6261782 6261782 Driven Adapt Sleeve Driven Adapt Sleeve Driven Adapt Sleeve G70 14 A K G70 14 A K G78 14 A K A G K H78 14 Bi G K A K D H K E78 14 K C K 3 08 Ratio 3 42 Ratio Drive Gear Drive Gear Tire Size 62617851 62617851 Driven Adapt Sleeve Driven Adapt Sleeve G70 14 570 14 A J K C H K 678 14 A J K C H K H78 14 D H K D I K E78 14 tPurp e 10 tooth green 9 tooth 1974 Monte Carlo with TH 350 Code Driven Gear Teeth Color Code Sleeve Assy A 9780628 35 Pink F 1362285 B 1362048 40 Black G 1362284 C 1359273 39 Brown D 9780470 44 Dk Gray 2 73 Ratio 3 08 Ratio 3 42 Ratio Tire Drive Gear Drive Gear Drive Gear Size 6260037 6260037 6260037 12428731 12428731 12428731 Driven Adapter Sleeve Driven Adapter Sleeve Driven Adapter Sleeve GR70 15 A G G D F G78 15 A G D G D F 18 Tooth Green I 1974 Pass w TH 375 400 Code Driven Gear Teeth Color Code Adapter Code Sleeve Assy A A 1359271 37 Red K 3932220 L 1362293 B 1359270 36 White M 1362294 C 9780628 35 Pink D 1362049 42 Green E 1362195 41 Yellow F 1359273 39 Brown G 9774413 34 Lt Green H 9775187 45 Lt Blue I 9780470 44 Dk Gray J 1362048 40 Black GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 4 4 000 GROUP 4 44 c REV 4 81