are softer metal. If you don't have the right angle, rip them off. BUT, if you have DODGE/CHRYSLER OEM bolts, you can simply unbolt the ball joint bracket from the old strut and bolt it onto the new block. Had to do this with one of mine because it was defective from the factory but I knew the mounts were good but the old ones had the post dead. Their new item randomly. As other people have said, install on the van first and then on the sunroof. Also grab a solid TORX T40 bit. I used one for the socket wrench. The gas has been leaking slowly for 3 months and is now unusable. Not a quality product.