Obviously remove the wheel, This is what you start with. Tools needed: 1/2" impact 1/2" drive ratchet and 3/8" adapter for 13/16" spark plug socket,,(thin wall to get to the nuts on the rear of the hub. 21mm deepwell impact socket Needle nose pliers, "C" clip pliers,,,(Otherwise refered to as a "Jesus Clip" Cause that is who you yell at when it goes flying across the garage!!!!) After wheel is off this is what you see, I used an extention thru the acess holes to get to the nuts that retain the extention as pictured. Then remove lockout as seen here,,,, This is what you see behind the lockout, and This is what comes out and the order they are removed! This is what is behind the spindle, the nuts have close quarters with the housing so you need a thin wall socket. I used this one (1/2" drive shallow socket) But found that an adapter and the 3/8" drive 13/16" spark plug socket works great, being a 6pt and all and has an even thinner wall. This plug is on the backside of the fender liner. You will get a new sensor and harness with the new hub.