For 1968-1974 GMC C25/C2500 Suburban A/C System Valve Core and Cap Kit 85314SC

1974 GMC C25/C2500 Suburban 5.7L V8 VIN: V 2BBL OHV. 1974 GMC C25/C2500 Suburban 4.8L 6 Cyl VIN: T. 1974 GMC C25/C2500 Suburban 4.1L 6 Cyl VIN: Q. 1974 GMC C25/C2500 Suburban 7.4L V8 VIN: Z. 1974 GMC C25/C2500 Suburban 7.4L V8 VIN: Z 4BBL OHV.