Start by parking on level ground, blocking the rear wheels, and disconnecting the negative battery terminal. Crawl under the front end and locate the six Torx-head bolts (15mm socket works on many) holding the factory bumper brackets to the frame rails—three on each side . Remove these bolts, but don’t yank the bumper off just yet. On the passenger side, there is a plastic vacuum canister hidden behind the bumper that supplies vacuum to your HVAC system. Disconnect the hose from this canister before pulling the bumper free . You will also need to remove the plastic end caps and the lower air dam, as these will not be reused with most aftermarket winch bumpers .
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