I am a bit stumped. Has anyone added headrests to a pre-headrest seat frame?
Hello Kirk,
Yes, did the job (together with my brother Wilhelm) and it worked out quite well.
We were even able to use the correct 280 oval shaped grommets on top of the backrest.
Only 2 things to mention,
if you use original W113 headrest rails - no problems,
if you use some from sedans, these need to be shortened by an inch or so,
and the upper attachment pins (with which the rails are attached to the keyholes of the backrest frame) need to be shortened.
There was no problem to do the cutouts in the rubber horsehair pads.
Good luck!
Achim
(strong headrest supporter)