1997 GMC K2500 Suburban equipped with 7.4L V8 Gas OHV, 6.5L V8 Diesel OHV Turbo, 5.7L V8 Gas OHV
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Transfer Case Motor Option Codes are on the Service Parts Identification Sticker with 2 Speed Electronic Shift Transfer Case (NP1)
1997 GMC K2500 Suburban equipped with 7.4L V8 Gas OHV, 6.5L V8 Diesel OHV Turbo, 5.7L V8 Gas OHV
Transfer Case Motor Option Codes are on the Service Parts Identification Sticker with 2 Speed Electronic Shift Transfer Case (NP1)