Glass Differences Between Years
Short answer: All three years technically had different glass. 1968 and 1969 look identical installed, but the concealed bottom edge differs — 1968 is straight across, 1969 has a curve. In practice they’re often interchangeable: the July 1969 parts book lists the 1968 and 1969 replacement glass as the same.
Caveats: some 1968 bird glass has been found with the curved (1969-style) bottom, so the rule isn’t absolute. The glass manufacturer also changed between 1968 and 1969 (PPG to LOF), though some 1969s reportedly still had PPG. When in doubt, go by the date code etched in the glass.
Any proposed updates, changes, pictures, and/or corrections, please use our comment section below (may need to click on permalink to access comments feature). Information is subject to change and offered as is without any warranties or guarantees. Please review our Term's Of Use for more information.
Content last modified: June 13, 2026 at 10:06 am
← Frequently Asked Questions
