1 【Compatibility】This lift kit is compatible with 2004-2020 Ford F150 2WD/4WD 【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】Different year has different raise height due to the factory suspension geometry (Only the rear height). Detail lift height as follow: 2004-2020 2wd lift front 3"and rear 3"; 2004-2008 4wd lift front 3"and rear 1"; 2009-2020 4wd lift front 3" and rear 1.5". You will need to have the vehicle re-aligned after the kit is installed and if your going to put aftermarket wheels/tires on your truck, install them after its been aligned 【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