TRANSMISSION TRANS JACK ADAPTER FOR HYDRAULIC FLOOR JACK ADAPTOR LIFT KIT TRANSMISSION TRANS JACK ADAPTER FOR HYDRAULIC FLOOR JACK ADAPTOR LIFT KIT It comes with a single safety chain that you tighten with a screw hook. Turn any standard floor jack into a transmission jack! Removeable saddle and 1-1/4'' hole into a transmission cradle for cars and trucks. Rugged alloy steel construction. Safety chain included. Fits all standard hydraulic floor jacks.