SPEEDOMETER GEAR CHARTS 1973 CORVETTE TURBO HYDRAMATIC 3 08 3 36 3 56 3 70 TIRE SIZE DRIVE GEAR DRIVE GEAR DRIVE GEAR DRIVE GEAR 8623310 8623310 8623310 8623310 GR 70 15 Drrven A Driven 8 Driven C Driven D Adapt Adapt Adapt Adapt 1974 CORVETTE TURBO HVDRAMATIC NUMBER NUMBER DRIVEN OF SLEEVE DRIVEN OF SLEEVE CODE GEAR TEETH COLOR ASSY CODE GEAR TEETI I COLOR ASSY A 9780628 35 Pink 1362294 C 1362048 Black 1362293 B 1359272 38 Blue 1362294 D 1362049 Green 1362293 3 08 RATIO 3 36 RATIO 3 56 RATIO 3 70 RATIO TIRE DRIVE GEAR DRIVE GEAR DRIVE GEAR DRIVE GEAR SIZE 8623310 8623310 8623310 8623310 15 A C n 1975 CORVETTE TURBO HYDRAIVIATIC NUMBER NUMBER DRIVEN OF SLEEVE DRIVEN OF SLEEVE CODE GEAR TEETH COLOR ASM V CODE GEAR TEETH COLOR ASM V 7 7 W YA 9780628 TSE Pinl 713622947 1362048 40 7BIack7 713622937 B 1359272 38 Blue 1362284 0 1362049 41 Green 1362293 3 08 RATIO 3 36 RATIO 3 56 RATIO 3 70 RATIO TIRE DRIVE GEAR DRIVE GEAR DRIVE GEAR DRIVE GEAR SIZE 8623310 8623310 8623310 8623310 A70 5 A 1 A n 1976 77 CORVETTE TURBO HYDRAMATIC NUMBER NUMBER DRIVEN OF SLEEVE DRIVEN OF SLEEVE GEAR TEETH COLOR ASM CODE GEAR TEETH COLOR ASM A 9780628 35 Pink 1362284 C 1362048 40 Black 1362293 8 1358272 36 Blue 1362294 D 1362049 42 Green 1862293 3987919 19 Natural 3987921 21 Red 3987922 22 Silver 3 08 RATIO 3 36 RATIO 3 55 RATIO 3 70 RATIO TIRE DRIVE GEAR DRIVE GEAR DRIVE GEAR DRIVE GEAR SIZE 8623310 8623310 8623310 8623310 AAA A5 A 1 A j GM PARTS DIVISION GENERAL MOTORS CORPORAT ON CHEVROLET 14 4 000 GROUP 4 10 c REV 5 80