idk what you guys did wrong, but i have a 4" custom lift and i lowered my TC an inch and a quarter and my drive lines went back to almost stock placement... then i pulled up my carpet and lowered the body side transfercase lever mount 3/4"... my very mild drive line vibes dissappeared. and my level works just like it did stock... dont get me wrong im sure a SYE will work better but my t/c drop worked as expected, and was a super cheap mod... the 1x2 tubing was free, drilled the hole's, think i paid 2 dollars for bolts, and .75 cents for rubber plugs to plug up the old holes after i drilled new ones in the body.