H L HARM HARMONIC L OR LT LEFT HARN HARNESS LAM LAMINATED HAZ HAZARD LAT LATCH HBRK HAND BRAKE L C LOW COMPRESSION H C HIGH COMPRESSION LDG LEDGE HD HEAD ER LEA LEATHER H D HEAVY DUTY LG LONG LENGTH HDL HANDLE L GLS LESS GLASS HDLP HEADLAMP LGT LIGHT HDLS HEADLESS LGTD LIGHT DUTY HDW HARDWARE LGTDNL LONGITUDINAL HEL HELICAL LH LEFT HAND HEX HEXAGON LIC LISCENSE HGE HINGE LK LOCK ING HNGR HANGER LNG LINING HOLDN HOLD DOWN LNKG LINKAGE HORIZ HORIZONTAL LNR LINER HP HORSEPOWER LOC LOCATING H PRF HIGH PERFORMANCE LP LAMP H RST HEAD RESTRAINT LOD LIQUID HSG HOUSING LRG LARGE H SHLD HEAT SHIELD LT OR L LEFT HT HEAT LTR LIGHTER HTG HEATING LUV LOUVER HTR HEATER LVL LEVEL HVY HEAVY LVR HEVER HYD HYDRAULIC LW HOOK WASHER HYDT HYDRAULIC TRANSMISSION LWR LOWER HYP HYPOID M I MACH MACHINE MAJ MAJOR I ARM IDLER ARM MAL MALLEABLE ID INSIDE DIAMETER MAN MANUAL IDENT IDENTIFICATION MANIF MANIFOLD IGN IGNITION MAR MARINE MAROON ILLUM ILLUMINATION ING MAS MASTER IMP IMPELLER MATL MATERIAL IN INCH ES MAX MAXIMUM INCL INCLUDE ES SIVE MBR MEMBER IND INDICATE OR ING ED M CYL MASTER CYLINDER INJ INJECTOR ION MECH MECHANICAL ISM INL INLET MED MEDIUM INR INNER MIN MINIMUM MINUTE INS INSERT MIR MIRROR INSL INSULATE ION OR MISC MISCELLANEOUS INSP INSPECTION ED MKR MARKER INST INSTRUMENT MLDG MOLDING INSTR INSTRUCTION MOD MODEL MODULATOR MODULUS INT INTAKE INTERNAL M T MANUAL TRANSMISSION INTCHG INTERCHANGEABLE MT MOUNT EO ING INTER INTERMEDIATE MTR METER ING MOTOR INTLK INTERLOCK ING MUFF MJFFLER INTR INTERIOR INV INVERTED INX INDEX N I P INSTRUMENT PANEL I S INSIDE NA NAME NATL NATIONAL NDL NEEDLE ED J MEG NEGATIVE NEU NEUTRAL J BLK JUNCTION BLOCK NI NICKEL JKT JACKET NIP NIPPLE JPR JUMPER NK NECK JT JOINT NO OR NUMBER JUNC JUNCTION NOM NOMINAL N PLT NAME PLATE N S NOT SERVICED K NY NYLON KNU KNUCKLE K PIN KING PIN 1987 GENERAL MOTORS SERVICE PARTS OPERATIONS M SB ABBR 3