1984 SPEEDO GEAR USAGE CHART B CAR CONTINUED D D A R G R G D I E I E A V A V A P TIRE SIZE AXLE TRANS E R E R T N R P205 75R15 P225 70R15 MV9 C U P205 75R15 P225 70R15 M31 49 A A P205 75R15 P225 70R15 3 23 M31 50 Y a NOTE 48 TRANS CODE XK XP XH 49 TRANS CODE XD 50 TRANS CODE XP 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17W 4 337 4 140 6 91