GMC 1982 Light Duty Truck, Service Manual

Page: 202 / 1435

2D-40 BODY
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O P T IO N A L
Fig. 2D-100--Outside Rear View Mirrors
BODY GLASS
C A U T IO N : A lw a y s w e a r gloves a n d eye glasses
w h e n h a n d lin g glass to avoid personal injury.
WINDSHIELD GLASS
T he windshield glass is retain ed to the body by
urethane adhesive. The windshield reveal moldings are vinyl
and are retained by two strips of butyl adhesive on the
underside of the molding, attaching to the body on one side
and the glass on the other and also by a retention lip in the
urethane which retains the glass. The windshield rests upon
the support molding which is secured to the pinchweld by a
bead of butyl adhesive.
W hen replacing a cracked windshield glass, it is very
im p o rta n t t h a t the cause of the glass b re a k a g e be
determined and the condition corrected before a new glass is
installed. Otherwise, it is possible th a t a small obstruction or
high spot somewhere around the windshield opening will
continue to crack or break the newly installed windshield,
especially when the strain on the glass caused by this
obstruction is increased by such conditions as wind
pressures, extremes of tem perature, motion of the vehicle,
etc.
Rem oval
There are two methods of windshield installation. The
windshield removal procedure is th e sam e for both
installation methods with one exception. If the short method
installation is to be used, more care must be used during
removal to make certain th at an even bead of adhesive
material remains on window opening to serve as a base for
replacement glass, there should not be any loose pieces of
adhesive left in the opening. C ut away a sufficient am ount of
material to allow for the installation of the reveal moldings.
1. Place protective coverings around the area where the
glass is being removed.
2. Remove windshield wiper arm s, exterior reveal