Improved Ground Clearance and Ride Quality. Take your workhorse to the next level with Rough Country's 3.5" Knuckle Lift kit. Rough Country's 3.5" Knuckle Kit provides an improved ground clearance and is designed for on or off-road driving. This suspension offers Rough Country's full lineup of shocks ranging from our N3 series to Vertex adjustable coil-overs.\ Innovative Design and Construction. This suspension kit combines the use of durable steel knuckles and forged upper control arms to reduce cv angles. Featuring a set of forged torsion bar keys that offer uncompromised strength and rigidity gaining lift height is no issue. Utilizing our forged upper control arms and differential drop spacers this kit allows you to retain factory-like geometry and provides enough clearance to run 33" tires with appropriate wheel backspacing.\ Installation.aWith a no-cut or drilling, design installation couldn't be easier. With an estimated timeframe of 4-6 hours this full kit can be installed at home using standard tools and can be completed efficiently and quickly!\ Lifetime Replacement Warranty. Rough Country's 3.5" Knuckle Kit is backed with a lifetime replacement warranty towards manufacturer defects. As such, the product is protected from structural and workmanship damage after the date of purchase. With our industry-leading warranty give yourself peace of mind when using Rough Country's Suspension products!a.