Rear rippers are versatile plant equipment attachments that ensure you have an easy time digging hard materials such as rocks and clay soils. If you need to attach the equipment to your bulldozer, tractor, or excavator, below are some things you should know.  Choosing A Ripper The general rule is that the ripper should suit your desired application. Your first concern would be whether the ripper is compatible with the available hitch on the plant equipment.