I 4 SPEED MANUAL TRANSMISSION 4 318 GASKET SEAL Transmission Rear Mein Bearing Con t 77 79 F M21 3787722 1 1 25 GASKET REAR BEARING RETAINER FRT I 76 79 ALL M20 3932255 1 3 40 SEAL EXT OIL 77 79 ALL MY1 3932255 1 3 40 SEAL EXT OIL 77 79 F M2I 6260707 1 5 55 SEAL EXTENSION OIL 4 319 BOLT BUSHING Transmission Extension 76 79 F M20 M2I 3774911 I 1 00 BOLT REAR BRG RETAINING 76 79 ALL M20 6260048 I 90 BUSHING 76 79 F M21 3978765 1 I 50 BUSHING EXTENSION 4 329 ADAPTER Spaadometer Driven Gear NOTE Refer to Speedo Gear L rart at the endcf fha transmission section 76 F X 326569 1 22 00 ADAPTER 77 X 332537 I 22 00 ADAPTER 8242 RATIO CODE H 78 A W M T 3905497 1 20 85 ADAPTER 8000 RATIO CODE T 78 H 1584274 1 32 54 ADAPTER I 0625 RATIO CODE P 78 79 H W M T M20 1589247 1 35 67 ADAPTER I 2I4 RATIO CODE AX 78 79 H W M T M20 6479661 I 33 97 ADAPTER 1 000 RATIO 79 F 3950352 I 22 00 ADAPTER 8242 RATIO CODE C 4 330 KEY Transmission Speedo Drive 76 78 F X 474299 I 1 35 KEY SPEEDO GEAR ADAP INPUT 78 79 H W M T M20 967209 1 I 28 KEY SPEEDO GEAR ADAP INPUT 78 79 H W M T M20 6476970 1 65 KEY SPEEDO GEAR ADAP OUTPUT I 9 750 I 4 337 GEAR Speedometer Driven NOTE Refer ta Speedo Gear Chan at the end oi the transmission section NO TE For additional model app cation refer to chart fo owing automatic section I 76 79 W M T M2I 3997920 1 1 25 GEAR 20 TEETH BLUE I 76 F X 3987919 1 1 25 GEAR 19 TEETH NATURAL I 76 H 361628 1 1 40 GEAR 18 TEETH MUSTARD I I 76 H 3860346 I 1 35 GEAR 23 TEETH BLACK y 76 77 H 3987921 I 1 40 GEAR 21 TEETH RED 76 79 H W M T M20 3987918 1 1 30 GEAR 18 TEETH BROWN I 76 79 T W M T MY1 361616 I 1 45 GEAR 22 TEETH PINK 76 79 T W M T MYI 361617 I 1 65 GEAR 24 TEETH BLUE I 77 79 F W M T M20 3987922 1 1 25 GEAR 22 TEETH SILVER I 77 F X 3987920 1 1 25 GEAR 20 TEETH BLUE 77 79 H W M T M20 3987919 1 1 25 GEAR 19 TEETH NATURAL I 77 79 X W M T M20 3987922 1 1 25 GEAR 22 TEETH SILVER 78 79 A W M T M20 3987920 I 1 25 GEAR 20 TEETH BLUE i 4 338 RETAINER SEAL SLEEVE Speedometer Driven Gear NOTE 7afa to Speedo Gear Chart at the and of the transmission section 76 79 ALL W M T M20 M21 MY1 3708148 1 15 RETAINER DRIVEN GR FTG 76 79 A B F T X 3869910 1 1 30 SEAL SPEEDO PINION 76 79 ALL W M T M20 M21 MYI 6264903 I 25 SEAL SPEEDO DRIVEN GEAR FTG 77 F W M T M20 473081 I 1 60 SEAL SPEEDO FLEX SHF 78 79 F W M T M20 M21 473081 1 1 60 SEAL SPEEDO FLEX SHF I 76 79 ALL 345215 1 2 95 SLEEVE USE WITH 18 Z3 TEETH GR I 4 342 BRACKET CABLE CLIP SHIELD SPRING CLIP Transmission to Speedometer 77 79 T W M T MYI 352462 1 39 BRACKET SPEEDO FLEX SHF GDE I 76 79 ALL 6477499 1 CABLE 70 OR LESS CABLE LENGTH CUT AS REO DO NOT USE FOR LWR CRUISE CONTROL CBL LESS CASING I 76 79 ALL 6478825 1 CABLE BO TO 172 CABLE LENGTH CUT AS REO DO NOT USE FOR 3 LOWER CRUISE CONTROL CBL LESS I CASINGI 76 77 F 6480236 I 10 42 CABLE SPEEDO FLEX W CASING 76 77 F M 20 6478179 1 10 46 CABLE SPEEDO FLEX I I 76 77 F W M T 6478171 1 7 98 CABLE SPEEDO UPR FLEX I I 76 F X 6479292 1 12 82 CABLE SPEEDO FLEX LOWER M 76 77 H 122 371775 I 15 95 CABLE SPEEDO FLEX I 76 H 122 IST DESIGN 371775 I 15 95 CABLE SPEEDO FLEX 76 H 140 6479630 1 12 44 CABLE SPEEDO FLEX I GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 10 REV 9 78 4 1s 4 31 8 4 342