My arb bumper and I'm sure it goes for all arb bumper will only fit a warn roller. It has smaller rollers compared to everything else. I tired fitting the smittybilt one that came with the winch and the roller didn't turn cuz it hit the part on the bumper I'm guessing to help protect it
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A little late to the party but this is correct.
There are, I believe, 2 designs for the winch mounting in the various ARB bullbars:
1) the winch mounts to a plate and the mounting bolts come up from underneath.
2) The winch is actually bolted to the inside of the front of the bullbar with the mounting bolts running horizontally through the front of the bullbar. In the case of this design there is a flange that the top of the fairlead should fit into. This will only accept a Warn-sized roller fairlead. The top flange on the bullbar is to provide support to the fairlead because you don't use the original fairlead mounting holes as you have to drill a couple of holes in the fairlead base so that the winch mounting bolts can run through them. As a result these bolts secure the fairlead at a point below the fairlead's horizontal centreline creating a moment of inertia. To combat this issue the support flange has a "lip" which holds the top of the fairlead in place and the fairlead is "bolted" to the flange by replacing the side roller pins with grade 8 bolts that run through the flange before running through the fairlead.
