I have no idea how you get the back bumper off! Could you help? Also whats the best website to find 1970 Ford Maverick Grabber parts??
I gave you a thread of your own. Look inside the trunk and you will see the attaching bolts that hold the bumper on the car. Once off the car you can get at the bolts that hold the bumper onto the mounting brackets. Right here in the classifieds and on ebay are the 2 biggest sources for parts. Check out the vendor links page to see some other sources.