Actually a not-too-stupid question. Kinda weird application, though...
What you are looking for is a SAS conversion.
Unfortunately, SAS conversions usually involve lifting the truck, cutting, welding, etc., etc. causing you to spend about $2700 just for the kit alone. Axles and other bits are extra.
You end up spending a lot more money than you probably want to.
Your best bet is to find another Samurai and swap the blade, patch up the rust or live with what you have for one more winter. If the '92 engine isn't all that bad (needs a tuneup?) you might swap the engine into the Samurai. It does not make the rust go away but you'll have more power in your Samurai for pushing the snow around...
You cannot easily swap a Tracker body onto a Samurai frame. The Tracker's frame is designed to make the vehicle ride lower and has some sharp curves on the front section that would be hard to adapt the body to the straighter Samurai frame.
I hope that this helps!