You can get a complete transfercase gearset for the samurai the will correct for 33" tires It changes Hi and low range.
http://www.rocky-road.com/zukdrive.html
Not real cheap but works , plus you get to keep the stronger 3:13 Ring and Pinion gears instead of swapping out for the 4:16 or whatever they are.
I suppose someone could make a a gearset for the KJ, they would probably not be cheap, but it would be less of a hassle than changing both front and rear Ring and Pinion gears. I bet the folks that make the Klune V could do it.