3 speed floor or automatic? The 3 speed floor shifts were virtually theft proof if you knew the Gremilin floor shifter secret :>} Pull into a parking space. Hold the shifter in neutral, and turn the shifter column on the steering wheel into 1`st gear :>}. I used to back mine up against a wall outside the Norfolk Yards in Portsmouth, Va. I locked the tranny with shift column into reverse and nobody managed to steal it :>}
Um, as long as I owned it my goal was to have it stolen. :-)
Just kidding, I couldn't have afforded theft coverage. I paid $100.00 in 1977 (when I was 20) for my 1971 Gremlin. It was definitely a 3-speed, floor shift. I was able to squeeze about 100 miles out of the existing clutch before needing a new one, adding another $150.00 to the cost of the car. I managed to keep it on the road for about a year and a half, at a maintenance cost of about $100.00 a month (brakes, starter drives, starters, flywheel, alternator, etc.) before it literally disintegrated on me.