If this is the Jeep you are referring,
JEEP, then yes. But I'd be more worried about the turning radius and the axles accepting that tall and weight of a tire. You are pushing the axles now with the 35" Boggers. You'll need more than gear ratio to make up for the tire's weight. Brakes will also need to be addressed.
Why would you need to remove the nerf bars? If you don't want them, remove them.
Save your money.