2004 GMC Sierra 3500 equipped with 8.1L V8 Gas OHV, 6.6L V8 Diesel OHV Turbo, 6.0L V8 Gas OHV, 6.0L V8 CNG OHV
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ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1) 4WD
2004 GMC Sierra 3500 equipped with 8.1L V8 Gas OHV, 6.6L V8 Diesel OHV Turbo, 6.0L V8 Gas OHV, 6.0L V8 CNG OHV
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1) 4WD