i dont know if this will work i just thought of it you can try it if you want

put the socket and power bar on the nut and rest it on the floor, if it's on the passenger side rest it facing the rear and try reversing the car slowly to undo the nut and oppesite on the driver side. if you do try it i would get somone to hold the power bar in place

i dont know if this will work iv never done it, im just thinking outside the box

other wise pull it like one of your mates nailing your sister