Hmm. Never heard of rear headrests, but that don't mean they couldn't be had. They were offering rear shoulder belts back then.
I'll try to look thru the 71 tech bulletins and see if rear seat headrests were offered at any time. I suppose a good trim shop could have put the headrest stuff from a front seat into the rear backrest.
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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...