Give your Super Duty Dually the Perfect Blend of Performance, Protection, and Style from Rough Country.. Unmatched Ground Clearance | Premium N3 Shock Absorbers the Best in Performance | Front Extended Drive Shaft Promotes Better Geometry / Twice as Strong as Factory.. Radius Arm Drop Brackets / Properly Set Caster to Maintain OEM Handling | Fabricated Rear Blocks / Stronger and Longer Lifespan.. Easy at Home Installation Supported by RC.. Backed by Rough Country's Limited Lifetime Replacement Warranty.