1977-1978 Chevrolet P10 4.8L 6 Cyl. 1977 Chevrolet P10 6.6L V8. 1975-1976, 1979-1980 Chevrolet P10. Notes: Drum Brake Hold Down Spring -- 11.15 In. x 2.75 In. Brakes; Secondary. Position: Rear. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.