How to change a radius arm bracket
 

This is part of your front end suspension.
https://www.f150-forums.com/howto/ra...t/DSC02587.jpg

And here's a damaged one that someone tried to fix. Now lets fix it the right way.
https://www.f150-forums.com/howto/ra...t/DSC02588.jpg

Soak the bolt with penetrating oil, you may also need to heat it up. Clean the threads good with a wire brush.
https://www.f150-forums.com/howto/ra...t/DSC02626.jpg

Get a good breaker bar and start pulling. This one actually came off with little effort.
https://www.f150-forums.com/howto/ra...t/DSC02625.jpg

https://www.f150-forums.com/howto/ra...t/DSC02627.jpg

There's a bolt and a few rivets holding this on. Get out your grinder and grind off the heads. Then use a hammer and punch to remove the rest
https://www.f150-forums.com/howto/ra...t/DSC02649.jpg

Try to clean up the area.
https://www.f150-forums.com/howto/ra...t/DSC02648.jpg

Line up the new bracket and put the bolts in place.
https://www.f150-forums.com/howto/ra...t/DSC02650.jpg

The tighten everything down.
https://www.f150-forums.com/howto/ra...t/DSC02651.jpg