Ok, this is gunna be long. Last week my jeep was 4.5inches and had 31s. No noises. Juss got 33s and lifted the back an inch with a block( i know there bad) but i figured an inch wouldnt be to bad since now its level and looks real good. When i pull put( 5 speed) and say i turn on red and i accelerate quick theres a noise ONLY when the jeep is lifting from accelerating and me on the gas and only in first gear. My right rear goes down( not much but noticeable) and left front picks up a little and that when the noise starts. Think of A fan with like 500 thin metal blades and touchint something metal or a baddd grinding noise basicly.( i already checked fan and shroud and evvvverything around it and the hood). The axle joints and hub assemblies were done 2 months ago. I greased the front driveshaft and everything else and still does it. I cant find amything its hitting or scraping against. I tried everything. What can it be?