4 SPEEDTRANSMISSION I I 1968 LIGHT DUTY TRUCKS F SPEEDOMETER GEAR CHART CONT D I 1 I I 4 343 4 337 A 4 329 4 338 I I zur 1 S d T Gear Gear xs I In In an We Speedomeler Speedomerer Adapter Fitting 1 hm Drive Driven Speedometer Assy 4 SPEED TRANSMISSION MUNCIE Confd I 4 57 8 00 x 16 5 76 I 3866742 3866799 1583624 4 57 7 00 xx 16 I 3866742 3866799 1585657 4 57 I 7 00 x 17 3866742 3866917 4 57 8 00 x 17 5 exc 0 R I 3866742 3866917 1565814 4 57 8 00 x 17 5 A 5 3866742 3866917 1584277 4 57 7 50 x 16 8 00 x 17 5 0 R 9 50 x 16 5 3866742 3866918 8 4 57 7 X1 x 18 I 3866742 3866918 1565812 7 N 4 57 7 00 x 18 3866742 3866918 1584275 I 4 57 7 00 x 16 0 R 8 75 x 16 5 10 00 x 16 5 I I 4 1 7 00 x 17 5 6 50 x 16 I 3866742 3866919 A 4 57 7 50 x 17 8 00 x 19 5 exc 0 R I I 3866742 3866919 1565813 I 4 57 7 50 x 17 8 00 x 19 5 exc 0 R I I 3866742 3866919 15842781 1 4 57 8 00 x 16 5 3866742 3866919 1584277 I 5 14 7 50 x 16 3866663 3866793 I 5 14 8 00 x 19 5 exc 0 R I 3866663 3866793 1565812 1 5 14 7 00 x 17 5 exc 0 R I 3866663 3866793 1565814 5 14 7 00 x 17 5 exc 0 R I 3866663 3866793 I 1584277 5 14 6 50 x 16 7 00 x 16 7 00 x 17 5 0 R A 8 00 x 17 5 0 R 3866663 3866794 I fg 1 5 14 8 00 x 19 5 0 R I 3866663 3866794 1565813 A 1 5 14 8 00 x 19 5 O R I 3866663 3866794 15842787 1 5 14 8 00 x 16 5 3866663 3866795 5 14 8 00 x 17 5 I A 3866663 3866795 1565812 I 5 14 8 00 x 17 5 3866663 3866795 1584275 I 5 14 7 00 x 18 I 3866663 3866796 1589247 5 14 7 00 x 18 3866663 3866796 1565452 6 17 8 25 x 20 I A 3866663 3866793 I 6 17 7 00 x 20 7 50 x 20 3866663 3866794 A 6 17 9 00 x 20 0 R 3866663 I 3866795 I 1584275 6 17 9 00 x 20 exc 0 R I I I 3866663 3866796 1565452a 6 17 7 00 x 18 3866663 3866796 6 17 8 00 x 19 5 I I 3866663 3866797 1584275 7 E I 4 SPEED TRANSMISSION NEW PROCESS CLOSE RATIO 3 07 8 15 x 15 exc 0 R 2495296 1565813 I 3749242 A 3 07 8 15 x 15 0 R 6 50 x 16 8 00 x 16 5 I 2495296 1589247 3749242 3 07 7 75 x 15 2495296 1565813 I 3749303 I 3 07 7 00 x 15 6 50 x 16 7 00 x 17 5 2495296 1589247 3749303 3 54 6 50 x 16 2495296 1565813 3705582 1 3 54 8 I1 x 17 5 9 50 x 16 5 A I 2495296 1589247 3705582 3 54 8 15 x 15 exc 0 R I 2495296 3749242 6 I I 3 54 6 50 x 16 0 R 7 00 x 16 2495296 1565813 3749242 8 3 54 7 75 x 15 8 15 x 15 0 R 8 00 x 16 5 2495296 3749303 3 54 7 00 x 15 6 50 x 16 7 00 x 17 5 1 8 75 x 16 5 10 00 x 16 5 2495296 1565812 3749303 I 3 54 7 50 x 16 2495296 1565813 3749303 Q 3 54 7 50 x 17 8 00 x 19 5 I 2495296 1589247 3749303 3 73 6 50 x 16 I 2495296 1565812 3705582 7 3 73 7 75 x 15 8 1 5 x 15 0 R 8 00 x 16 5 I 2495296 3749242 I 3 73 8 15 x 15 I 2495296 1565814 3749242 NOTE Use only with Prop Shaft Brake GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROL ET 72TL A REV 5 79 V 4 61 4 337 4 337