gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Oil Pan, Engine|Service and Repair|Page 1425 > < Oil Pan, Engine|Service and Repair
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Engine oiling system. V8-454

Engine oiling system. V6-231

V6-229, 262, V8-267, 305, 350 & 400

1985---87
    Late production 1985 and all 1986---87 models with V6-262 engines are equipped with a one-piece oil pan gasket that replaces the four-piece gasket
previously used. The one-piece gasket (P/N14081222) can be installed on all V6-262 engines and should be used during installation whenever the oil
pan is removed.

Series 10---30/1500---3500

1.

Disconnect battery ground cable and drain oil pan.

2.

Raise and support vehicle, then remove exhaust crossover pipe.

Oil Pan, Engine|Service and Repair|Page 1425 > < Oil Pan, Engine|Service and Repair