Just take the bolt off the top of the arm, way easier. I figure you must be doing a leveling kit install. I don't know why they don't just have it that way in the instructions. I fought that stupid thing for 20 minutes on the first side. Removed it from the top and had the whole other side done in 10.
2007 F-150 SCREW 5.4L 4wd
Pioneer AVH-3300BT, Kenwood 6.5 components, Infinity coax., 800W Kenwood to JL Stealthbox, MBRP XP Series, Drilled/slotted rotors, Bully Dog GT, 2.5" HBS level, Advance Cover, Weathertech liners, 325/60/18 Terra Grapplers, EZ down tailgate damper, LED swap, LED puddle lights