1987 SPEEDO GEAR USAGE CHART S1 4 SPEED A C0nt1nued A D A R G D I E A V A P TIRE SIZE AXLE TRANS E R T N R P215 65R15 3 73 M73 42 I P195 75 4 I EHR P195 TSRM ERIE P2 5 14 A HHH P205 75R15 P205 75R15OR P215 65R15 Meg nun PMHSR14 KKK P195 75 15 KIIII P 5 M14 KH 205 75R15 P205 75R15OR A P215 65R15 4 11 M73 A A NOTE 42T TRANS CODE GDA X I 1990 GENERAL MOTORS SERVICE PARTS OPERAT 0NS LT TRUCK 52S REV 10 90 I 4 97 4 450