The replacement GT rear windows with heater wires are freely available both
in tinted and clear glass. It is such a pain fitting a new front or rear
screen to a GT (due to those rotten chrome strips) I would recommend an
after market stick on variety. I have seen it doem quite satisfactorily
both to GTs and to glass rear windows on hardtops. The current drain on the
factory item is 5 amps..
Graham McCann Rivett, ACT. Australia