I need to replace the passenger front bumper fender filler pad on my 1970 Mercury Cougar as it's missing. I have two questions, do I need to take the front bumper off to do so and secondly what does it involve to remove the front bumper. Any advice would be greatly appreciated. I'm just finishing up the exterior of the car concering what was missing on it, this is the last thing to do. Thanks for your time.