4 SPEED TRANSMISSION 4 338 FlTTING PLUG RETAINER SLEEVE Speedometer Driven Gear NOTE For detailed application use speedometer gear chart 61 Ser 10 20 exc 4 WD 62 63 Ser 10 20 3748533 1 90 2 0 L 60 62 Ser 10 4 WD 6 70 x 15 7 10 x 15 60 67 Ser 20 4 WD 7 00 x 16 7 00 x 17 7 50 x 15 7 50 x 17 7 50 x 16 8 00 x 17 5 8 00 x 18 5 68 For application see chart in group 4 337 2396888 1 4 25 12 teeth stamped S W and 448664 60 66 Ser 10 4 WD 6 00 x 16 6 50 x 16 6 70 x 15 7 00 x 15 7 50 x 15 7 75 x 15 7 00 x 7 00 x 17 5 8 00 x 17 5 60 66 Ser 20 4 WD 7 50 x 17 8 00 x 19 5 68 For application see chart in group 4 337 2396889 1 4 25 11 teeth stamped S W and 448663 60 66 Ser 20 4 WD 6 50 x 16 7 00 x 15 7 00 x 16 7 00 x 17 5 68 For application see chart in group 4 337 2396890 1 4 25 13 teeth stamped S W and 448665 69 Ser 10 20 w 4 Spd 3869912 1 2 00 w seal 68 For application refer to chart in group 4 337 3749242 1 2 15 19 teeth brown and green paint 68 For application refer to chart in group 4 337 3756911 1 2 15 11 teeth yellow and orange paint 68 For application refer to chart in group 4 337 3705582 1 2 35 20 teeth orange and green paint 68 For application refer to chart in group 4 337 3756915 1 2 15 13 teeth green and black paint 68 For application refer to chart in group 4 337 3749303 1 2 15 18 teeth black and white paint 68 For application refer to chart in group 4 337 3756913 1 2 03 12 teeth yellow and purple paint 68 For application refer to chart in group 4 337 3756917 1 2 20 14 teeth green and purple paint 62 66 4 WD w 4 Spd 3718093 1 1 30 PLUG fitting hole hex 20 65 70 G 10 20 3708148 1 10 RETAINER gear fitting D 60 70 All Blazer 4 WD 2396891 1 1 45 SLEEVE 68 Ser 10 thru 30 w 4 Spd exc D D H D 70 All Blazer w Muncie 4 Spd exc 4 WD 3866790 1 1 75 SLEEVE 62 Ser 10 20 exc D D 4 WD 62 Ser 10 20 D D 63 Ser 10 20 exc 4 WD H D 64 Ser 10 20 exc 4 WD 3708146 1 10 SEAL gear fitting 0 ring hole plug Vi D 4 342 SHAFT ASSY SHAFT UNIT CLlP BRACKET Speedometer without Casing 38 Comm 55 59 Ser 3 2nd Ser exc D Dl 60 61 Ser 30 exc D D 63 65 Ser 30 exc D D 1562889 1 1 91 58 39 40 All 67 Ser 10 thru 30 Conv 1563435 1 74 61V Note 1 NOTE 1 Production shaft only Not to be confused with Service Shaft 1563561 41 47 Comm exc D D 49 55 Comm 1st Ser exc D D 1562669 1 1 74 63 41 55 D D C O E w 4 Spd 1st Ser 48 59 D D exc 1 Ton 60 62 Ser 20 30 D D 63 66 4 WD 67 Ser 20 30 D D 6453660 1 3 60 108 60 64 Ser 10 20 exc 4 WD D D 1564778 1 1 86 56V 48 59 D D exc 1 Ton 60 66 Ser 20 30 D D 63 66 4 WD 1563768 1 3 13 98 39 55 Comm 1st Ser exc D D 1563561 1 2 03 68 Note 2 NOTE 2 For use with shaft assy 1588291 57 59 All w 4 WD 1564675 1 2 38 86V 66 67 G 10 20 1565004 1 3 89 127V 0 L t 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORAT 0N P A 31 j 4 338 4 342 4 96 REV 6 71