I just bought an 04 Tahoe Z71 that had a brush guard on it.Want to take the brush guard off and sell it. I Removed the brackets that tie in near the tow books,and the ones that go on top of the bumper. The brush guard is off. However, there are two more brackets tied in near the radiator supper that go to the back of the bumper with a tall bolt and plastic spacer. These overlapped with the brackets that went from top of the bumper to brush guard. Are these factory or from the brush guard? Want to make sure I give the buyer everything needed.