Used to replace front struts on a Honda CRV01. U-bolts came loose between coil and strut with little clearance. Once sprung and compressed there was no problem with slippage or anything like that. My roommate and I were overwhelmed by how easy and safe it was to use. I highly recommend anyone who wants to do this job alone without the risk of sending the quill in the neighbor's bay window or, worse, catching the quill behind the forehead. Spend a little more than other "pinned" compressors.