2008 GMC Sierra 2500 HD equipped with 6.6L V8 Diesel OHV Turbo, 6.0L V8 Gas OHV
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REF TSB 12-04-001 BEFORE ORDERING (FOR 1ST DES SEE 19132996 LOCK PLATE)(2 TAB 2-SPD MAN SHFT ALUM TRANSFER CASE(NQG),SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH) 2nd Design 4WD
2008 GMC Sierra 2500 HD equipped with 6.6L V8 Diesel OHV Turbo, 6.0L V8 Gas OHV
REF TSB 12-04-001 BEFORE ORDERING (FOR 1ST DES SEE 19132996 LOCK PLATE)(2 TAB 2-SPD MAN SHFT ALUM TRANSFER CASE(NQG),SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH) 2nd Design 4WD