1985-1986 Chevrolet C10 4.3L V6 GAS. 1985-1986 GMC C1500 4.3L V6 GAS. 1985-1986 GMC C2500 4.3L V6 GAS. 1985 GMC K2500 4.3L V6 GAS. The fan shroud basically houses the fan blades securing it in place and keeping it from damaging the other engine components that may disturb the smooth and even operation of the engine.
