lefty loosy... righty tighty.

But you dont need to remove that big ass nut to change a brake rotor.

Unbolt the caliper and either belt the back of the disc with a rubber mallet ( like I did ). Or insert two bolts into the empty threads either side of the center of the brake rotor and screw them in to push the rotor from the hub.

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RS Liberty - Because WRX's are only good for parts...