The Poison Spyder Winch Fairlead Mount installs between the winch and the bumper to provide a mounting surface for the winch fairlead. The Winch Fairlead Mount is designed to fit the 10� x 4-1/2� bolt pattern common to most Warn winches except 8274. Many other winch brands use the same bolt pattern. The Winch Fairlead Mount is designed to fit the winch rope slot and 10� bolt pattern of most Warn or common aftermarket roller or Hawse fairleads, including the Poison Spyder Aluminum Hawse Winch Fairlead (P/N 45-45-010).