【Compatibility】This lift kit is compatible with 2004-2020 Ford F150 2WD/4WD 【High Enough to Make Room for the Tires】Good looking on your truck and provide enough ground balance. Make your ride feel even than before the kit was installed with no rough or bumpy you will feel going over rugged terrain 【Premium Material】10.9 Grade bolts. Forged aircraft billet aluminum T6 treated, CNC automatic processing, surface anodic oxidation and heat treatment, not only ensure high precision and stability, but also enhance the hardness, excellent resistance to corrosion by black anodized surface 【Aluminum Block】Compared with steel/plastic/iron blocks, our aluminum block is an exclusive patented design, our engineers for many times to make it more durable and compressive and it will be reduce the weight of the vehicles after you install the lift kit rather than iron blocks 【*Note】Rear lift heights vary by year due to factory suspension design. For 2004-2020 2WD, there's a 3" front lift and 2" rear lift; for 2004-2008 4WD, it's a 3" front lift with the rear at stock height; and for 2009-2020 4WD, you get a 3" front lift and 0.5" rear lift. After installing, be sure to get a re-alignment, and if you're adding aftermarket wheels or tires, do it after the alignment