1999-2006 Chevy Silverado Leveling Kit 2" - (Torsion Bar Keys) Tuff Country Kits

If I purchase this leveling kit (above) will I need these shocks (below) for the height difference?

1999-2006 Chevy Silverado 1500 4wd (w/0" to 2" lift) - Bilstein 5100 Series Shock Absorber (FRONT)