73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91, 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985, 1986 1987 1988 1989 1990 1991 90, K5 K10 K15 K20 K25 K30 K35 C5 C10 C15 C20 C25 C30 C35 C40 C45 C50, C55 C60 SQUAREBODY BLAZER SUBURBAN SQUARE BODY GMC JIMMY PICKUP T, TRUCK 4 DOOR 2 DOOR CREW CAB SINGLE REGULAR CAB EXTENDED CAB LONG, LONG BED SHORT BED CCLB CCSB, SWB LWB GAUGE CLUSTER INSTRUMENT GAUGE CLUSTER CORE GAUGE GAGE PO, POD SINGLE FUEL TEMP OIL VOLT AMP, GM GENERAL MOTORS COMPANY CORPORATION GMC CHEVY CHEVROLET, DOOR PANEL GRILLE CABIN VENT, CENTER CAP, SIGNAL MARKER LIGHT, DOOR PARTS, DOOR PANEL HARDWARE MARKER FENDER AMBER LIGHT LITE, CUMMINS SWAP FUEL DIESEL C10 C20 C30 K10 K20 K30 K40 K50 K60 C40, 5.9 6.2 6.0 6.1 6.2L 6.5L DETROIT DIESLE, 0 20 40 60 80 PSI, VOLT VOLTS VOLTAGE AMP AMPETER AMMETER GAGE, ALTERNATOR CHARGE GENERATOR 14 VOLT, TEMP TEMPERATURE COOLING COOLANT WATER GAUGE ANTIFREEZE