A LITTLE trimming - not!
Stock tire is 29.5" tall and 9.64" wide
285/75/16 is almost 33" tall and 11.2" wide.
You'll need to crank the tbars which will make the front higher than the back and then you'll have to buy spacers or new springs for the back, and cut at least the front cladding if not the back of the wheelwell slightly but it will look good.
A 285/60 is a much better choice if you are trying to go for the wider look - maybe even a 285/65