1982-1986 GMC C2500 Suburban 5.0L V8. 1979-1980, 1982, 1986 GMC C2500 Suburban 5.7L V8. 1981, 1983-1985 GMC C2500 Suburban 5.7L V8 VIN: L. 1981, 1983-1985 GMC C2500 Suburban 5.7L V8 VIN: M. Notes: Engine Water Pump Gasket -- Water Pump to Block; Composite.