SPEEDOMETER GEAR CHARTS 1978 SPEED0 GEAR USAGE CHART DRIVE DRIVEN GEAR GEAR ADAPTER A 6261784 B Orengo 3987919 19 Natural 145215 B 6251797 7 Brown 398791E 18 Brown 345215 C 361002 7 Greorr 3987922 22 Silver 345215 39137920 20 Blue 345215 1978 SPEED0 GEAR USAGE CHART 4 e g I z we 4 v v V All HKZK A EIB All ml II IE l All u Mzw c IIE f All A M I All z 10 MZO M21 c E 1 Nom 6ng 350L L48 Eng 350H L82 i l l 1 l V GM PARTS DIVISION GENERAL M01 0Bs c0Rl 0l1ATl0N c1 lEvl20LET 14 4 000 GROUP 4 11 C REV 5 80 1