this is what I bought. Got them from auto anything. Sign up for their emails and it is pretty easy to get coupon's 20% off or a little more... There are also some reps on the f150 forum that will quote you some discounted prices from auto anything if you private message them. These are super easy to install, no wheel removal needed you just need a really high lift jack and some wrenches, they slide right In and bolt over top of your originals. They do lift the back about an 3/4" when unloaded and stiffen the ride up a smidge unloaded.. But really help when loaded. I didn't even notice the ride difference after a week or so. I did not want to screw with airbags and just wanted it there when I needed it and this fit the bill. Good luck.
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