I have a 2007 Ford F-150 FX2 Sport. It was difficult to choose a levelling kit as the suspension is more like the FX4 model but it does not have the CV axles (because it is not 4-wheel drive). Because the FX2/FX4 has blocks in the rear (from the factory), it will be levelled perfectly by 2.5" kits. This rough country kit is very economical and durable. I found it did not alter ride quality to any detectable degree. It levelled it perfectly and I am very satisfied with it. Remember to retorque your new nuts after a while. It does seem to stress the upper control arms and U-joints a tad but not to an unbearable level. remember to keep them greased. I haven't noticed the upper control arms rubbing on the coil spring, which is good. Overall, a solid purchase and I would definitely recommend the Polyurethane kits over Steel or Aluminum kits (simply because of corrosion and elasticity factors).