Offhand I'll say not hard to find as all 71-76 B and E body convertibles use the same windshield, and the windshield antenna was standard issue unless power antenna was ordered. Same thing with 71-76 B & E closed cars except hardtops and post sedans use different p/n. Ninety Eights and Custom Cruisers have taller windshields than the 88/Toronado.
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Glenn Williamson
Rocketraider
member AACA and all major Olds clubs
1964 Starfire, 1969 Toronado, 1974 Hurst/Olds, 1976 Ninety Eight
There's a Dodge K-Car and a Ford truck hiding in there too! Hey, ya gotta have something to beat around in...