My current project has four wheels, two front are drive wheels, two back are caster wheels. this
setup gives me zero radius turns which is very handy for parts of my application(mowing grass),
but does limit me in other parts(like plowing snow), what I'd like to try is replacing the casters
with two drive wheels, giving me four wheel drive, where both wheels on each side would turn
together for Differential Steering. IMO it should work good for plowing, but I gotta think it would
cause to much friction for zero radius turns on grass(tar up the grass when turning).
front and rear axles would be 18" apart.
front wheelbase 36", rear wheelbase 32".
What you think, bad for grass?