Notes: Drum Brake Adjusting Screw Assembly -- S248. 1968-1970 GMC C25/C2500 Suburban. 1971-1972 GMC C25/C2500 Suburban. 1973-1974 GMC C25/C2500 Suburban. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.