1999-2007(Classic) GMC Sierra 1500 Front Suspension Lift Kit & Extended Pro Comp Shocks 4WD 4x4 915511 5" may require a Differential

5" may require a Differential Drop Kit (A0614)

This kit replaces your factory torsion key and is precision indexed to lift and level your front end any amount from 1

They are a monotube construction with a hardened piston rod vs

Built from aerospace grad 6061-T6 aluminum

Dodge  Ram 1500 Mega Cab Wheel Spacers increase inner wheel clearance

1999-2007(Classic) GMC Sierra 1500 Front Suspension Lift Kit & Extended Pro Comp Shocks 4WD 4x4 915511 5" may require a Differential2x Front Lift Steel Torsion Keys 2x Front Pro Comp Extended Shocks Installation Instructions 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". Supreme Suspensions is proud to carry Pro Comp's ES9000 shock series