We recommend that the FlatLink or UltraHook first be removed from your winch line prior to the Rope Guard installation. Then, remove all rubber pieces from your FlatLink or UltraHook product. A little prying from a flat blade screwdriver should do the trick in popping out the rubber barbs.
You will need to reinstall two of the rubber pieces after the Rope Guard installation is completed. We recommend that you place the FlatLink on top of a piece of wood on the ground or workbench surface prior to hammering in the drive rivets. Be sure to orient the Rope Guard in the correct direction (slot facing the rear) prior to proceeding with the rivet installation.
For the UltraHook, make sure that the plane of the rubber pad surface is held flat to the wood surface for one side of the rivet installation and pivot the UltraHook over to the other surface for the remaining rivet installation. Now simply insert the 4 included drive rivets and using a ¼ inch punch, hammer the drive rivet posts down until the posts are flush with the top of the rivet head. Reinstall the rubber pads (lubricate the barbs) on the opposing side and you are done.