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Windshield Replacement Diagram & Instructions in a 78
Source: by Indybronco (Lula Mae) at
http://www.supermotors.net/clubs/superford/registry/media/306843

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As for the Glass, in case others need info and Ford prices; WS, TG, side and vent; Ford says;
Choose Ford Motor Company Genuine Replacement Glass for assured fit and easy installation. All replacement glass is designed to provide clear visibility and filter UV and IR radiation entering the vehicle interior.
Built to fit and work to our high standards
Guaranteed optical clarity
Proper curves and seals helps ensure a precise fit to prevent leaks, rattles and wind noise
Windshield glass is laminated to help prevent shattering
Side window glass is safety tempered
Retains the vehicle’s original interior noise-reduction performance
Search all Ford Motor Company Genuine Replacement Glass by vehicle application, VIN or part number