3 SPEED TRANSMISSION 1974 ALL w 3 SPD DRIVEN SLEEVE GEAR TEETH ADAPTER ASM A 3987920 20 Blue 3950354 345215 B 3987921 21 Red 326569 3899912 C 3987922 22 Silver D 3987919 19 Natural E 3987918 18 Brown 3 08 RATIO 3 42 RATIO TIRE DRIVE GEAR DRIVE GEAR SIZE 6261794 8261794 Chevelle Driven Adept Sleeve Driven Adapt Sleeve 78 14 A H 670 14 D H B H 678 I4 D H B H H78 14 E F H A F H GR70 15 D H 678 15 E F H Cemeru E78 I4 D G I C H F70 14 D G I B G I FR7B l4 D G I C H Nvva E7B 14 A H E70 14 A H 8 Tooth Natural 1975 ALL w 3 SPD DRIVEN SLEEVE GEAR TEET H COLOR ADAPTER ASM A 3987920 20 Blue 3950354 345215 B 398792I 21 Red 326569 3869912 C 3987922 22 Silver D 3987919 19 Natural E 3987918 18 Brown 3 08 RATIO 3 42 RATIO DRIVE GEAR DRIVE GEAR TIRE SIZE 6261794 8261794 Chevelle Driven Adapter Sleeve Driven Adapter Sleeve E78 I4 A H y 670 14 D H B H 678 14 D H B H H78 14 E F H A F H GR70 15 D H 678 15 E F H Camaro E7B 14 D G l C H F70 14 D G I B G 17 7 FR78 14 D G I C H Nova E7e14 A H 1570 14 A H B Toot 7 Natural 4 338 FITTING RETAINER SEAL Speednmeter Driven Geer 62 64 Chevy Chevelle 65 67 Pass w 3 Spd exc H D 65 66 Chevy 65 SB Chevelle 67 89 Chevy Camaro 63 69 Pass V 69 Chevelle I 70 71 All 3869914 I 3 05 w seal 74 Vega w Saglnew 345215 1 2 70 w seal Speedo driven gear GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 4 337 4 338 mo REV 4 77