SECTION 4-A 1959 BUICK BACK WINDOW

4-1 1959 BUICK BACK WINDOW 39 STYLES

The “39” style bodies feature a new wraparound back window which is secured in the body opening by a conventional rubber channel. Due to the size and contour of the new wraparound back window it is important that the 1959 Buick back window body opening be checked before installation of a replacement glass.

1959 Buick Back Window Assembly – Removal

  1. Remove rear seat cushion and back assemblies. Place protective coverings over parcel shelf trim and over painted surfaces around 1959 Buick back window.
  2. Remove 1959 Buick back window garnish moldings.
  3. Remove back window side and lower reveal moldings. See “Back Window Reveal Moldings” for “39” Styles.
  4. From inside body, carefully break seal between lip of rubber channel and pinchweld flange around perimeter of glass.
  5. Carefully push back window and rubber channel assembly rearward until lip of rubber channel is disengaged from pinchweld flange.
  6. With aid of a helper, lift complete assembly from body opening and place on a protected surface. Remove back window upper reveal moldings from rubber channel and rubber channel from glass.

Checking 1959 Buick Back Window Body Opening – All “39” Styles

Due to the size and contour of the wraparound back window it is important that the back window body opening be checked before the installation of a replacement glass. The following procedure outlines the method which may be used to check the back window body opening.

  1. Clean off original sealer from 1959 Buick back window body opening.
  2. Check body pinchweld flange for any irregularities and correct, where necessary.
  3. Install seven (7) windshield checking blocks over pinchweld flange at locations shown in Figure 4-1. DO NOT place checking blocks at the attaching stools for the back window lower reveal moldings.
    1959 Buick Back Window Opening Check

    1959 Buick Back Window Opening Check

  4. With aid of a helper carefully position replacement glass in 1959 Buick back window opening.
    CAUTION: Care should be exercised to make certain glass does not strike body metal during installation. Edge chips can lead to future breaks.
  5. With 1959 Buick back window glass supported and centered in the opening by checking blocks, check relationship of glass to body opening around entire perimeter of glass. The distance between the inside surface of the glass and the pinchweld flange, indicated at “B” in Section “A-A,” Figure 4-1, and between the outer edge of the glass and body metal, indicated at “C” in Section “A-A,” Figure 4-1, should be uniform along the bottom and at the sides of the glass and body opening. Any irregularities should be marked and re-formed. The distance between the outer edge of the glass and body metal, indicated at “C” in Section “A-A,” Figure 4-1, increases at the upper corners and along the top of the opening.
  6. Mark any sections of body to be reformed; remove glass from opening and re-form opening as required.
  7. Recheck back window opening again as outlined above. Then MARK CENTER OF GLASS AND BODY OPENING so that the glass can be accurately centered in the opening when installed.
  8. Install 1959 Buick back window glass.

1959 Buick Back Window Assembly Installation

  1. Clean original sealer from back window body opening and rubber channel. Check back window body opening and pinchweld flange for any irregularities and correct, where necessary.
    IMPORTANT: If installing a new back window glass, check glass and body opening as described under “Checking 1959 Buick Back Window Body Opening”-“39” Styles.
  2. Apply a continuous ribbon of medium bodied sealer to corner of back window rabbet along sides and top of opening, as indicated at “1” in Section “B-B,” Figure 4-2.