idk about spacing and bore but these are the gmc style im running on mine. they are 17x7.5 and they mounted right up no prob.even with the larger tires as to keep rims safe.they only rub at full turn. heres pics with them on the truck.and im using the acorn style lug nuts.
$(KGrHqF,!icE3W,6F-HuBN3ZjgsitQ~~0_12.JPG