SPEEDOMETER GEAR CHARTS V TP148 1974 SPEEDOMETER GEAR CHART C 1 2 3 w 4 SPEED CODE DRIVEN GEARS SLEEVE ASM CODE DRIVEN GEARS SLEEVE ASM CODE ADAPTERSV A 3866799 19T 326561 D 3866918 2IT 326561 F 3950348 B 3866798 18T 2126561 E 3866919 22T 32656I G 3950350 C 3866917 ZUT 326561 H 3925673 I 3950354 J 3950352 K 3905497 L 3925669 3 21 3 40 3 73 4 10 I 1 1 4 56 5 13 DRIVE GEAR DRIVE GEAR DRIVE GEAR DRIVE GEAR DRIVE GEAR DRIVE GEAR DRIVE GEAR TIRE SIZE 3866742 3866742 366741 3866742 3866742 3866742 3666742 Dvhmn Adapt Duhon Adapt Drivan Adapt Dvivsn Adapt Drivan Adnpt Driv n Adapt Drlvon Adam msn s A n I G7B 1500R B A D E78 15 B C E L7B 15 C F B C L76 1500R C F B C H78 15 D F A D H78 1500R B A D 7 00 16 C F B C 7 00150012 B H B C J 7 00 16 A F D F A A D I C J 7 00 1600R A F B A A D A K 6 50 I6T C F B C 501670011 B H B C LR78 I 5 E G B I C I 8 75 16 5 A F B C B K D J 8 75 6 500R A F B C E C K 7 50 I 5 A G E G B I C I E L 7 5I0 1500R A G C F B C A J 9 50 16 5 B F D F A D 9 50 16 50011 B F B A D 10 0016 5 C G B A I E 10 00 16 500FI C G B C E 8 00 16 5 C I C I A J D K WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION LT TRUCK 5I 4 000 GROUP 4 s REV 2 83