Didn't know whether to file this under "Interior" or "Bodywork" but since I'm starting to tear down the interior, I put it here. The front passenger seat came out easily (though for a 1971 it does have that seat spring clip to watch out for, typical of 1972 models), but the passenger seat is frozen - the seat adjuster is rusted into position. I'm treating it overnight with some good metal penetrator fluid.