Cognito 3-Inch Leveling Kit For 2001-2010 Silverado/Sierra 2500/3500 2WD/4WD 2003-2007 6.0l powerstroke the Bulkhead fitting functions as

the Bulkhead fitting functions as both a suction tube and return and features a 5/8” Suction Tube and suction fuel line along with a ½”” Fuel Return Port

Drop EGT's

new blacked out circuit boards and promintent branding further enhance the RDS SR-Series sleek and subtle look

Will NOT fit models equipped with MagneRide suspension

Cognito 3-Inch Leveling Kit For 2001-2010 Silverado/Sierra 2500/3500 2WD/4WD 2003-2007 6.0l powerstroke the Bulkhead fitting functions asThe Cognito 3 Inch Performance Leveling Kit contains everything you need to level your truck or SUV with high quality components. The Cognito 3 Inch Performance Leveling Kit includes the Cognito Ball Joint SM Series Upper Control Arm Kit, Torsion Bar Adjuster Keys, front and rear Fox Performance Series Monotube shocks and front shock spacers to maximize droop travel. The Cognito Ball Joint SM Series Upper Control Arms feature boxed sheet metal arms