CLARK 5 SPEED TRANISMISSION 1971 72 TRUCK SPEEDOMETER GEAR CHART Cont 4 337 4 343 4 330 REAR GEAR GEAR 4 329 KEY r AXLE REAR TIRE SIZE SPEEDO SPEEDO ADAPTER SPEEDO RATIO DRIVEN DRIVE SPEEDO ADAPTER CLARK 5 SPEED 280 SERIES 4 86 7 50 x 20 8 25 x 20 0 R 3918805 3918804 6451928 867209 4 86 8 25 x 20 3918805 3918804 6451930 867209 4 86 7 50 x 20 O R 3918805 3918804 1565452 867209 4 86 9 00 x 20 9 00 x 20 0 R 10 00 x 20 3918805 3918804 6451929 867209 5 57 7 50 x 20 8 25 x 20 8 25 x 20 O R 3918805 3918804 1584278 867209 5 57 7 50 x 20 0 R 3918805 2918804 1584274 867209 5 57 9 00 x 20 9 00 x 20 O R 10 00 x 20 3918805 3918804 1565452 867209 6 14 7 50 x 20 7 50 x 20 0 R 8 25 x 20 0 R 3918805 3918804 6 14 8 25 x 20 9 00 x 20 9 00 x 20 O R 3918805 3918804 4 1584274 867209 6 14 10 00 x 20 3918805 3918804 1584278 867209 6 17 7 50 x 20 7 50 x 20 0 R 8 25 x 20 0 R 3918805 3918804 6 17 8 25 x 20 9 00 x 20 Y 9 00 x 20 0 R 3918805 3918804 1584274 867209 6 17 10 00 x 20 3918805 3918804 1584278 867209 6 50 8 25 x 20 9 00 x 20 9 00 x 20 0 R 3918805 3918804 V 6 50 7 50 x 20 O FI 8 25 x 20 0 R 7 50 x 20 3918805 I 3918804 1584277 867209 6 50 10 00 x 20 10 0 x 20 0 R 3918805 39188 4 1584274 867209 6 50 11 00 x 20 3918805 3918804 1584278 867209 A 7 17 7 50 x 20 7 50 x 20 0 R 8 25 x 20 8 25 x 20 0 R 3918805 3918804 1585657 867209 7 17 9 00 x 20 9 00 x 20 0 R 10 00 x 20 10 0 x 20 0 R 3918805 3918804 1584277 867209 7 17 11 00 x 20 3918805 3918804 7 20 7 50 x 20 8 25 x 20 7 50 x 20 O R 8 25 x 20 0 R 9 00 x 20 O R 3918805 3918804 1585657 867209 7 20 9 00 x 20 10 00 x 20 10 0x 20 O R 3918805 3918804 1584277 867209 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TM i REV 5 79 4 133 4 343 4 343