These install easily and drop the rear of my 2014 f150 xlt to just the right height. welded all the way around and the bushings are already pressed in. they are a tiny bit wider than the factory part and needed a little extra to get them into place. the grease fitting hole they provided is too small to allow the fitting to tap its way in the way it was intended and needs to be reamed out just a little. the only complaint I have is the spring ever so lightly comes in contact with a bed seam on both sides after it is lowered. we used a crescent wrench to bow out on the seam a little and problem fixed. the alteration is not noticeable and does not damage the bed.