Brake Servo For 1974 GMC C35/C3500 Pickup 1973 GMC C15/C1500 Suburban 4.1L L6

Compatible with: 1975 - 1978 GMC C15 Suburban. Compatible with: 1977 - 1978 GMC C15. Compatible with: 1976 - 1977 GMC C35. Compatible with: 1979 GMC C1500 Suburban. Compatible with: 1979 GMC C1500. Compatible with: 1973 - 1980 Chevrolet C10 Suburban.