Strattec/OEM + 706592 X2 + 598009 X2 GMC Factory Original Ignition Switch Lock Cylinder +2 (Pair) Door Locks Cylinders+2 OEM GMC Logo Keys To MatchATTENTION:THIS SET AS IT IS FIT MODELS WITH AUTOMATIC TRANSMISSION, IF YOU HAVE MANUAL TRANSMISSION MODELS IT REQUIRED DIFFERENT IGNITION CYLINDER. IGNITION AND DOORS LOCKSET FIT GMC MODELS LISTED IN MY COMPATIBILITY LIST ABOVE NOT SURE? EMAIL ME WITH YOU MAKE AND MODEL Avoid high repair costs from your local dealer and repair it yourself. I'm certified locksmith and replace those many times and if you have any questions concerning this product or other lock needs do not hesitate to email me.