1987 SPEED0 GEAR USAGE CHART V1 2 3 THM 400 Continued D D A y 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 LT235 85Rl6 LT235 B5Rl60R I 50 16LT 7 50 15LTOOF n T n NOTE O4 TRAN5 CODE TAA TBA ENGINE 350M LT9 454W LEB BGHRANS CODE LDLENGINE 5 OH L03 BTHRANS CODE FWATFFLENGINE 5 7K L05 6 2J LL4 SSHRANS CODE FNA THA ENG1NE l 4N Ll9 454W LEB B9 20 SERIES 90 30 SERIES 6 V A t 1990 GENERAL MOTORS SERVICE PARTS OPERATIDNS LTTRUCK 5ZR 4 450 V 160 REV 9 90