SPEEDCPMETER GEAR CHARTS P256 1978 SPEEDO GEARI USAGE CHART H CAR 7 l Q g 0 4 K 1IRE l2 E AXLE TRANS S Q Q 6 2 5 5 C 0 v A78 x 13 BR78 x 13 B Q g 13Qj R7O x 13 A M20 E V L BR70 x 13C B78 X 13 mYA V 4 E T 11 1 A78 x 13 BR78 x 13 B1 3l1 Qg R70 X 13 M75 F V L BR7O X 13C 1373 X 13 E x A78 x 13 BR78 x13L ix13C j R7O x 13 M75 y G V L BR78 X 13C B78 X 13 TL G x A78 X 13 BR7O X 13 W9 A Q L BR78 x 13 BR78 x 13C B O x Wg B78 x 13 A J L AN E 323 gag lil S ll A78 X 13 BR78 X 13 BR713 X 13c BR70 X 13 c v Q M33 BR70 X 13C B78 X 13 C T M L AU L 3 3 L L M3 L EL L L ME NOTE Keys Required 867209 lnput Key 6476970 Output Key With Trans Stamped KA W th Trans Stamped KL With Trans Stamped HL W th Trans Stamped RM 13 mm GENERAL MOTORS SERVICE PARTS OFAERATIONS PONTIAC 21 REV 7 87 4 1 1 C 4 OOO GROUP