Kit Includes: * 2x Front Wheel Bearing and Hubs Assembly - 515058 Hub Specifications: * Position: Front * Lugs: 8 Bolts * ABS Type: Sensor Wire * Flange Type: 4-Bolt Square Fitment: **Only for use with 4-Wheel Drive (4WD / 4x4) Models!** Replacement for Chevrolet: * 2002-2006 Avalanche 2500 (4WD / 4x4 MODELS) * 2001-2003/2005-2006 Silverado 1500 Hd (4WD Heavy Duty Suspension) * 2007 Silverado 1500 HD Classic (4WD Heavy Duty Suspension) * 1999-2004 Silverado 2500 (4WD / 4x4 MODELS) * 2001-2006 Silverado 2500 HD (4WD Heavy Duty Suspension) * 2001-2006 Silverado 3500 (4WD / 4x4 MODELS) * 2000-2006 Suburban 2500 (4WD / 4x4 MODELS) Replacement for GMC: * 2001-2003 Sierra 1500 HD (4WD Heavy Duty Suspension) * 2005-2006 Sierra 1500 HD (4WD Heavy Duty Suspension) * 2007 Sierra 1500 HD Classic (4WD Heavy Duty Suspension) * 1999-2004 Sierra 2500 (4WD / 4x4 MODELS) * 2001-2006 Sierra 2500 HD (4WD Heavy Duty Suspension) * 2001-2006 Sierra 3500 (4WD / 4x4 MODELS) * 2007 Sierra 3500 Classic (4WD / 4x4 MODELS) * 2000-2006 Yukon XL 2500 (4WD / 4x4 MODELS) Replacement for 2003-2007 Hummer H2 (4WD / 4x4 MODELS)