A a 4 SPEED TRANSMISSION I A 4 338 EITTI NG PLUG RETAINER SLEEVE SEAL Speedometer Driven B8 1 NOTE For detailed application use speedometer gear chart I I f 61 Ser 10 20 exc 4 WD 1 A 62 63 Ser 10 20 A 3748533 1 2 O L I 60 62 Ser 10 4 WD 6 70 x 15 7 10 x 15 A I 60 67 Ser 20 4 WD I 7 00 x 16 7 00 x 17 7 50 x 15 7 50 x I I 17 7 50 x 16 8 00 x 17 5 8 00 x 18 5 60 66 Ser 10 4 WD 6 00 x 16 6 50 x 16 6 70 x 15 7 00 x 4 15 7 50 x 15 7 75 x 15 7 00 x 7 00 x I 17 5 8 00 x 17 5 I 1 60 66 Ser 20 4 WD A 7 50 xA 17 8 00 x 19 5 1 I 68 For application see chart in A I T I group 4 337 I L 2396889 1 11 teeth stamped S W and 448663 60 66 Ser 20 4 WD I I 6 50 x 16 7 00 x 15 7 00 x 16 7 00 xI I I I 17 5 I 89 Ser 10 20 w 4 Spd 345215 1 A w seal 66 For application refer to chart in I I group 4 337 I 3756911 1 1 1 teeth yellow and orange paint I 68 For application refer to chart in I 1 I group 4 337 3705582 1 A 20 teeth orange and green paint A I A 68 For application refer to chart in V A A group 4 337 Q 3756915 A1 13 teeth green and black paint I 66 For application refer to chart in l i group 4 337 3749303 1 A 18 teeth black and white paint 68 For application refer to chart in I I A I I A group 4 337 3756913 A 1 12 teeth yellow and purple paint A 62 66 4 WD w 4 Spd 3718093 1 PLUG fitting hole hex 20 65 70 G 10 20 Q 3708148 1 RETAINER gear fitting I D 4 60 70 All Blazer 4 WD I 2396891 1 1 SLEEVE 68 Ser 10 thru 30 w 4 Spd exc A R D D H D I I 1 I 7 0 All Blazer w Muncie 4 Spd A exc 4 WD 326561 1 A SLEEVE 62 Ser 10 20 exc D D 4 WD A V a 62 Ser 10 20 D D I I I I I AI 63 Ser 10 20 exc 4 WD H D A I 64 Ser 10 20 exc 4 WD 6264903 1 A SEAL gear fitting 0 ring hole plug I I I I I D I I 4 342 SHAFT ASSY SHAFT UNIT Speedometer without Casing 1 NOTE 3 For models requiring maximum length of 70 cut to required length NOTE 4 For models requiring length of 81 to 172 cut to required length I I 48 59 D D exc 1 Ton I A I I I 60 66 Ser 20 30 D D I I I 63 66 4 WD 6478825 1 I 98 1 I 66 67 G 10 20 6478825 1 A 127 0 L A A A38 72 All A I 6477499 1 SHAFT UNIT consists of shaft tip AC 1 I 615 70 0 L Note 3 I 38 72 All 6478825 1 SHAFT UNIT 171 0 L Note 4 L V 4 a I 4 342A SHAFT ASSEMBLY with Casing 1 NOTE Shaft length is generally 1 longer than casing deminsion listed A 47 72 All 6478131 1 80 casing 0 L CC 514 A 1 I 39 55 Comm lst Ser exc D D I A cos 65 72 All 6476128 I CC 529 S4 to 68 55 72 All 6476126 A 1 u w 56 thru 60 I long CC 509 A I 55 72 All 6478127 1 u w 61 thru 64 long CC 510 Y 41 55 D D w 4 Spd 1st Ser I A 48 59 D D exc 1 Ton r I 60 62 Ser 20 30 D D 63 66 A4 WD 3 I 67 69 Ser 20 30 D D 6476190 1 108 casing I 60 62 4 WD lst design I X 1 60 64 Ser 20 30 D D A A 65 66 All I 6478193 1 120 casing 1 57 59 All w 4 WD A A I A A 61 62 Ser 10 D D w 4 Spd A 62 4 WD 2nd design I I 63 Ser 10 D D w 4 Spd I I 1 I as as An I 67 69 Ser 10 D D 6478134 1 92 z casing 67 69 ISer 10 thru 30 exc D D I 4 WD I 3915561 1 68 i GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TLj j REV 5 79 I 4 91 4 338 4 342