SPEEDOMETER GEAR CHARTS L243 1979 SPEEDO GEAR USAGE CHART X CAR 49 9 Sz DRIVE DRIVEN ly GEAR GEAR ADAPTER ro A 1246222 18 Blue N 9774413 34 morgan 25512340 H 3932220 0 7333 A NB 25512340 B 8640188 19 Yellow P 9780387 35 Orange 25512340 I 3950352 0 8242 C c 1246221 17 Red 0 1359270 36 whim 25512340 0 6261796 9 Red R 1359271 37 Red 25512340 E 6261797 7 Brown S 1359273 39 Brown 25512340 SB 25512340 T 1362048 40 Black 25512339 1 U 3987922 22 Gray 345215 1 v 3987921 21 Red 345215 W 9780470 44 Dk Gray 25512339 x 9775187 45 Blue 25512339 Y 1362196 43 Purple 25512339 1979 SPEEDO GEAR USAGE CHART X CAR e 45 TIRE SIZE 4z 4 1 32 35 Q 0 0 v PR73 14 E73 14 ER73 15 A ER73 14 M33 A n PR73 14 E73 14 2 41 I QQ ER73 14 11433 3 IQQ FR78 15 B H PR73 14 ER73 14 C EE E73 14 ER73 15 256 M33 C N K FR78 14 E73 14 PR73 15 293 C S B ER73 14 M33 C T E 1 R73 14 ER73 14 E73 14 W5 II U ER73 15 E V B PR73 14 ER73 14 E73 14 M20 H U PR73 15 E V FR78 14 E73 14 3 08 A W Z ER73 14 M33 A x ER73 15 A Y ER73 14 E73 14 Q il H ER78 14 M33 n S ll ER73 15 1 X E E l e 323 M33 E VJ NOTE W th Trans Stamped JD With Trans Stamped JC L 1987 GENERAL MOTORS SERVICE PARTS 0PERAT10Ns 0L0sMOB1LE 31 4 000 GROUP 4 14 C REV 7 87