I have 285/75/16 cooper discoverer ST on my 90, the only thing i'v had to do was adjust the steering stops and thats with tired suspension, new susp in the pipe line.
the 285s gave me an extra 2" on the diff height.
I used solvent free (didn't fancy the resultant solvent head fook) evo stick contact adhesive, the material has a certain amount of 'spring' to it so this helps holds it in place.