Twice I've gotten sent a drop, I call and complain until I get the flat one that I asked for lol. I also had the tre in there when I mounted the ifs box kit so I could be sure it cleared the frame. It's about 1/2" of clearance. You should be fine with the 3/4 drop I'd imagine, your teuck is kind of tall so when you toss 37s on it you'll be extending bump stops I'm sure anyway
