2004 GMC Sonoma. 1998-2003 GMC Sonoma 4WD. Notes: Disc Brake Rotor — Electrophoretic Premium Coating – Superior Rust Prevention (per ASTM B-117/ISO 9227). Position: Front. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle’s Year, Make, Model, Trim and Engine in the Compatibility Table.