This kit contains the following Titanium Hi Locks, Cone Washers and small Hex Nylock nuts. The nuts take a 9/16" wrench and the flange Dia. is 3/4". Use this kit on Drag Link. 2ea. HIL500NF2250-TI Hi Lock 2ea. CONWASH500X312 Cone Wahser 2ea. NUTHF500-20SP Hex Flange Nut You will need to ream the holes on the pittman arm and steering arm to .480"-.485" for a good press fit.Use red Locktite on Hilock befor pressing into hole.