shocks ?
Yes what you have up front is a coil spring with a shock tube inside of that coil and ford did a good job with the f150 front suspension. In back you have leaf springs and a block with another angled tube shock. In most cases there is no need to replace that coil up front however you can easily replace you shocks in front and rear. Bilistien 5100 shocks are a great option for you. They are rather inexpensive and can provide 2" of lift to level your truck as well as give you a better ride. I am about to add them to my 6" lift. Good luck and I'll be happy to help
If you get just one pair of Bilistien 5100 shocks they can be adjusted to a 2" setting. This will level your truck and just you a upgrade in shocks. That is all you will need to replace. It is a very underutilized suspension technique although they are fairly new to the community. I am about to get a pair and add them to my 6 inch lift to go 8" because I just threw in my 37's.

