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
2012 GMC Yukon XL 2500 equipped with 6.0L V8 Flex 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