I got to know the tech at my dealership yesterday. He was a really nice guy. Said he was not supposed to replace the hoses until they were "dripping" but he ordered 2 new ones for me under warranty anyhow...
For the embarrassing part
...found the source of the sound.. So, when istalling the FL last weekend, I pulled/replaced the battery tray and my amazing friend (never seen a KJ or FL, installed both fronts wiht out directions in about 2 hours) pulled/replaced the air box...he did not get the lid seated correctly at the back of the box (hence the vaccum leak sound). Long and short, the tech yesterday said the lip at the back of the box was warped a bit and didnt seat correctly and he would get me one under warranty..nice guy. and nobody at the dealer said anyhting about the lift..