Hi Everyone,
I have a 2004 f150 4x4, When I put it in four wheel drive everythings fine until I make a sharp turn. It's not a little wheel hop its a loud clunk that feels like the tire comes off the ground. I changed the cv axle from the side that seemed to be doing it but it didn't help.Could it be the actuator? Anybody have a clue whats up?

 

Sounds like the terrain you are turning on doesn't require 4x4.