With the plastic molding removed, the sheet metal at the top of the rear seat looks like it could be drilled so that thin headrests could be installed (holes paint-shopped in).

[Linked Image]
(full size photo )

Then you'd just need some headrests to install...
[Linked Image]

I'd consider doing this if I had cheap and easy access to some headrests, but we rarely travel in my truck. The back seat is not real comfortable for my two teenagers...

Pages Tread Lightly Tacoma