1970 TRUCK SPEEDOMETER GEAR CHART CONT 4 337 4 343 4 330 REAR GEAR GEAR 329 KEY AXLE REAR TIRE SIZE SPEEDO SPEEDO ADAPTER SPEEDOQ RA DRIVEN DRIVE sPEE ADAPTER CLARK 5 SPE ED 280 SERIES CONT 6 50 7 50 x 20 O R 8 25 x 20 O R 7 50 x 20 3918805 3918804 1584277 867209 6 50 10 00 x 20 10 0 x 20 O R 3918805 3918804 1584274 867209 6 50 11 00 x 20 3918805 3918804 1584278 867209 7 17 7 50 x 20 7 50 x 20 O R 8 25 x 20 8 25 x 20 O R 3918805 3918804 1585657 867209 7 17 9 00 x 20 9 00 x 20 O R 10 00 x 20 10 0 x 20 O R 3918805 3918804 1584276 867209 7 17 11 00 x 20 3918805 3918804 7 20 7 50 x 20 8 25 x 20 7 50 x 20 0 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 0 x 20 O R 3918805 3918804 1584276 867209 AUXILIARY 4 SPEED SPICER 6000 SERIES 5 83 7 50 x 20 7 50 x 20 O R 8 25 x 20 O R 3794274 3794272 1565175 2087805 5 83 8 25 x 20 9 00 x 20 9 00 x 20 O R 3794274 3794272 1565177 2087805 5 83 10 0 x 20 O R 3794274 3794272 1565178 2087805 5 83 11 00 x 20 3794274 3794272 1565179 2087805 5 83 9 5 x 16 5 O R 3794274 3794272 1565170 2087805 7 17 8 25 x 20 9 00 x 20 9 00 x 20 O R 3794274 3794272 1565170 2087805 7 17 8 25 x 20 O R 3794274 3794272 1565215 2087805 7 17 10 00 x 20 3794274 3794272 1565172 2087805 7 17 10 0 x 20 O R 3794274 3794272 1569300 2087805 4 343 4 343 4 343 REAR 3 GEAR GEAR GEAR 4 329 AXLE REAR TIRE SIZE SPEEDQ SPEEDO SPEEDO SPEEDO ADAPTER SPEED 0 RATIO DR EN DRIVE DRIVE DRIVE SPEEDO ADAPTE 2 P T SPICER N P POWERMATIC P T 5 SPEED SPICER 3000 NEW PROCESS N P 4 86 7 50 x 20 7 50 x 20 O R 3756924 6769718 3760297 3760296 6451929 867209 4 86 8 25 x 20 3756922 6769718 3760297 3760296 6451929 867209 4 86 8 25 x 20 O R 3756920 6769718 3760297 3760296 6451928 867209 4 86 9 00 x 20 10 00 x 20 9 00 x 20 O R 3756920 6769718 3760297 3760296 6451929 867209 5 57 7 50 x 20 3756926 6769718 3760297 3760296 6451928 867209 5 57 8 25 x 20 3756924 6769718 3760297 3760296 6451930 867209 5 57 7 50 x 20 0 R 3756924 6769718 3760297 3760296 1565452 867209 5 57 8 25 x 20 O R 3756926 6769718 3760297 3760296 6451930 867209 5 57 9 00 x 20 9 00 x 20 O R 3756926 6769718 3760297 3760296 6451929 867209 5 57 10 00 x 20 3756924 6769718 3760297 3760296 6451929 867209 5 83 7 00 x 20 3756926 6769718 3760297 3760296 1565452 867209 5 83 7 50 x 20 3756920 6769718 3760297 3760296 1584274 867209 5 83 8 25 x 20 3756926 6769718 3760297 3760296 6451930 867209 5 83 7 50 x 20 0 R 3756920 6769718 3760297 3760296 5 83 8 25 x 20 O R 3756922 6769718 3760297 3760296 1584278 867209 5 83 9 00 x 20 3756922 6769718 3760297 3760296 1565452 867209 5 83 9 00 x 20 O R 3756920 6769718 3760297 3760296 1584278 867209 5 83 10 00 x 20 3756926 6769718 3760297 3760296 6451929 867209 5 83 11 00 x 20 3756922 6769718 3760297 3760296 6451930 867209 6 14 7 00 x 20 8 25 x 20 O R 7 50 x 20 7 50 x 20 O R 3756920 6769718 3760297 3760296 6 14 8 25 x 20 9 00 x 20 O R 3756920 6769718 3760297 3760296 1584274 867209 si 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORAT ON P A 31S 4 337 4 337 4 88 REV 6 71