ive got a 2inch budget boost (spacers) on my grand with standard lengh shocks, its not been any problem as the standard ones are long enough!!!
i also have 31 inch bfgoodrich all-terrains, that are fantastic!!
i didn't rate them till i got a set an now i definatly dont agree with the people that say your only paying for a name!
you've really gotta get youself bogged down or in a funny possition befor your compleatly stuck, an if its your first go at offroading i wouldn't reccomend anything else!