My 1997 Intrepid's cradle mount or (sub frame bushings) are bad. Meaning the rubber is almost shot. All four are this way and none of them will come out with an impact wrench!!!! Are their any tricks for getting these out? This is a bad design. The nut on the bottom goes through two bushings and through the frame. On the top side of this is, I'm assuming, a square piece of metal that the cradle bolt goes through. This tacked on 4 sides and then the whole thing is covered with a pot metal skin. Therefore when the impact is put on this bolt it just spins!!!! No way to get to it or cut it out! Please, anybody help!!!!!!!!