I am having a hard time find the correct factory part number for the rear sway bar bracket on a 2002 FX4 level II. Spoken to several dealer parts departments and all give me the number for the smaller 3" axle not the 3.25" axle. I have the smaller bracket part # F57Z-5B498-AA, and rwenzing was able to use the smaller bracket on his truck. Perhaps my axle is just a hair larger and I can force the bracket on, but I would like to find out if there was a larger bracket from the factory. I think it should be part # F87Z-5B498-BA listed for heavy duty axle but I don't know if that is correct, anyone with an FX4 Level II 31-spline 3.25" axle that can confirm what part number was on your truck from the factory?

 

swaybars are played