2011-2018 GMC Sierra 3500HD Front Suspension Lift Kit & Bilstein Shocks 4WD 4x4 Shock Series:4600 Series Front torsion keys are adjustable

Front torsion keys are adjustable anywhere from 1 to 3

the factory single tube construction and contain a 10-stage velocity sensitive valving which prprovides amazing comfort AND toughness

4x Front and Rear Add-A-Leaf Springs

and Abrasion Resistance

2x High-Strength Steel Strut Spacers

2011-2018 GMC Sierra 3500HD Front Suspension Lift Kit & Bilstein Shocks 4WD 4x4 Shock Series:4600 Series Front torsion keys are adjustable2x Front Lift Steel Torsion Keys 2x Front Bilstein Shocks Installation instructions IMPORTANT: Fits 8 Lug models ONLY Please check out our installation video: Our Max Torsion Key Lift Kits are engineered with twice the strength of the factory system and precision indexed to lift your truck without sacrificing ride quality. This kit replaces your factory torsion key and is precision indexed to lift and level your front end any amount from 1" to 3".