The Tuff Country 2‑inch front leveling kit for 1999–2006 GMC Sierra 1500 4x4 uses replacement torsion bar keys to reindex the stock torsion bars and level the front without excessive preload. This version includes front shock extension brackets so factory front shocks can be retained, simplifying installation while correcting front rake and allowing modestly larger tires without changing factory shock hardware.
Tuff Country 99-06 GMC Sierra 1500 4x4 2in Leveling Kit Front (w/Front Shock Extensions)