That Hustler sure is in good shape for an amphib of that year model.

How long is it compared to the newer Max IV bodies? Also, how hard is it to change out the motor thats in it now, and replace it with a larger motor,,,say a 25 hp kolier,,or maybe just a 23 hp Briggs motor? Is that a Borg Warner T-20 in it I see?

How big a tire can you put on this Machine?
How does the frame on this Hustler compare to a later model Max IV frame? Similar to,, or heavier made?