Offroad-Express

anybody use blocks to raise their leaf sprung lux?
i know its not ideal but i only want to raise the rear only 20mm, just to level the truck out, the only thing i want to do is level the ass end out or maybe bring it up 10mm higher than the front, as with a bita gear in the back or back seat passenger it sags a bit, i dont realy want to alter the spring in any way, as current old springs flex quite well, and i dont wana spend a cent on spring mods untill i do it all properly and do a coon swap etc, so no dramas with 20-30mm blocks??????

i couldnt see a problem with it aslong as your ubolts are long enough and you drill the blocks out and bolt them with the springs so they sit in the locators.