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1966 Corvette: Product Data Book: Radiator Grille Supports

Subject:   Radiator Grille Supports
Model and Year: 1966 Corvette
Source: Technical Service Department - Product Data Book
Page: 1
Section: XIII, Group 2
Date: March 22, 1966

When 1966 Corvettes are driven on rough surface roads, there is a possibility the outer grille supports may break at the body attaching locations.

In production, starting with serial #S115499, the radiator grille supports are of an improved design and a radiator support rod has been added at the center.  This is similar to 1965 production.

If outer grille support breakage is encountered on vehicles built prior to serial #S115499, install radiator grille supports, Part No. 3897389, and center radiator support rod, Part No. 3897387. (fig. 1).

1966 Corvette Grille Supports

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.

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