1 3 SPEED TRANSMISSION I I r 1 A 4 105 COVER PLUG Transmission Case Con t A A 67 Ser 10 20 w Muncie 3 Spd A exc O D I A A A 1 1 68 Ser 10 20 w Muncie 3 Spd A A exc O D D D 3731900 1 scissors type cast 373191 1 66 70 G 10 20 w 3 Spd 1st design 1 exc H D 66 69 Ser 10 w O D A A A V V 67 68 Ser 10 20 w 3 Spd exc D D S 4 WD 69 Ser 10 20 w Saginaw 3 Spd A 2 V 1 exc D D 4 WD 1 A 69 Ser 20 D D w Saginaw 3 A Spd A S 69 Blazer w Saginaw 3 Spd 3919365 1 V stamped 3919365 1 70 72 Ser 10 20 Conv w Saginaw A A V A 3 Spd A 70 72 Blazer 4 WD w Saginaw 3 Spd 338287 1 I 70 72 Ser 10 20 D D w Saginaw 3 I V Spd 1 71 72 G 10 thru 30 w Saginaw 338288 1 I I A 69 72 Ser 10 20 w Muncie 3 Spd exc D D 3977508 1 1 COVER ASSY 69 72 Ser 20 D D w Muncie 3 Spd Q V A 71 72 G 20 30 w Muncie 3977509 1 COVER ASSY 38 70 All 3930923 1 PLUG trans casemagnet z 4 107 SEAL RETAINER Trans Case Cover and Gearshift A E A 48 55 Comm w 3 Spd 1st S r 1st A design exc H D 55 Ser 3 w 3 Spd 2nd Ser 2nd 1 design exc H D A 591660 2 A cork shaft in cover A 48 55 All w 3 Spd A A 591099 A R RETAINER shaft seal in cover A 4 109 GASKET Transmission Case Cover 48 65 All w 3 Spd exc H D O D A 66 67 Ser 10 20 w 3 Spd exc H D A A A O D A 68 Ser 10 20 4 WD w Muncie 3 1 3 Spd 68 Ser A10 Conv w Muncie 3 Spd 6 cyl exc O D 591513 1 fiber 54 66 All w H D 3 Spd 3709316 1 side 5 1 x 7 9 holes 66 70 Ser 10 20 Conv G 10 20 A V w Saginaw 3 Spd 68 70 Ser 10 20 D D w Saginaw 3 A 1 Spd 1 A 71 72 A l BIazer w Saginaw A 3858990 1 I 8 u O L 8 holes A 1 69 70 Ser 10 20 w Muncie 3 Spd i A A 71 72 All W MUI lCl6 3952621 1 5 ic X 83 va A 4 196 GASKET Transmission Oil A A 38 70 All A 3921989 A R I l D x u O D x u thk A A 4 303 FORK Gearshift A 48 65 All w Muncie 3 Spd 1st A design 1 3845048 1 A 2nd and 3rd 1 l 54 68 All w H D 3 Spd 3746272 A R A 1st and reverse less shaft hollow drilled A 55 65 All w Muncie 3 Spd 1st A V g 1 design A 3845045 1 1st and reverse less shaft T 65 68 All w Muncie 3 Spd 2nd A 1 A A design 3731918 1 1st and reverse Iess shaft A 65 68 All w Muncie 3 Spd 2nd A V design 3785217 1 2nd and 3rd 2 69 72 All w Muncie 3 Spd 3831717 2 lst and reverse Warner T16 24 66 72 All Blazer w Saginaw 3 Spd 3858997 A R 1st and reverse 2nd and 3rd L 4 307 1 INTERLOCK LOCK PIN SLEEVE STUD Gearshift V 1 NOTE 1 Use selectively A A 68 Ser 10 Conv w Muncie 3 A i Spd 250 exc O D D D 591455 1 4 u O D 60 68 All w Muncie 3 Spd 591539 2 LOCK interlock ret stud nut 54 68 All w H D 3 Spd 3709315 1 1 PIN interlock O D x N lg 54 64 All w H D 3 Spd A 37093 13 1 SLEEVE trans interlock B etched on end 1 az long note 1 t GM PARTS DIVISPON GENERAL MOTORS CORPORATION CHEVROLET 72TL t 4 105 4 307 4 8 1 REV 5 79