theyre supposed to use an airgun with a special tool thats set to twist at a pre set torque.....nbat said:Dealer has rotated these twice. They are so tight i can't get them loose and i have a fullsize cross type lug wrench. I think i'll just call onstar. As i said it's just sitting in the garage. I'm sure they just used a airgun. I have a impact wrench but if there that tight i really don't want to deal with it!