Tuff Country 11-19 GMC Sierra 3500 4X4/2wd 3.5in Uni-Ball Lift Kt (Includes Duallys No Shocks) Engine Components>Intake Manifolds but then there

but then there

Leak-Free Seal: High quality 3/8" thick flanges are used for a complete 360 degree sealing surface

The Grizzly Locker’s larger teeth also resist breakage caused by shock-loading or catastrophic axle failure

Factory Mounting Locations: These headers retain your stock catalytic converters and factory 02 sensor locations for a direct bolt-on installation which requires no cutting or modifying

Magnetic Plug: This system incorporates a magnetic drain plug to capture loose particles for maximum protection

Tuff Country 11-19 GMC Sierra 3500 4X4/2wd 3.5in Uni-Ball Lift Kt (Includes Duallys No Shocks) Engine Components>Intake Manifolds but then thereTuff Country EZ Ride suspension's 3. 5? lift kits are an affordable lift solution that will allow up to 35 inch tires (w minor trimming). The replacement torsion bars reindex the factory torsion bars while the new upper control arms keep the front end in proper geometry. 1? inch blocks and extended u bolts raise the rear end. Also includes front shock relocation brackets, new shocks not required. Installation Instructions