SPEEDOMETER GEAR CHARTS B233 1980 SPEEDO GEAR USAGE CHART H CAR Q A Q Sw 5 DRIVE DRIVEN 9 3 O GEAR GEAR A 0 ADAPTER K0 A 6261797 7 Brown 3987918 18 Brown 345215 H 368025 1 2020 BG B 6261784 8 Orange 3987919 19 Natural 345215 I 368026 1 8000 BH 3987920 20 Blue 345215 3987921 21 Red 345215 e 3 4 0 A rms snzz r z 4 629 6 43 BR78 x 13 BR70 x 13 K M20 A H B78x 13 2 56 A 1 BR78x 13 Bm0X 13 B78x 13 M38 II N B I 111 BR78 X 13 BR70 X 13 373 X 13 M20 A IIIB BR78 X 13 378 X 13 2 93 M38 IIIIH BR70 X 13 IEI In 11 WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORAT ON BUICK 41 ii REV 5 81 4 31 c 4 000 GROUP