X2 to this. Forgot about the tcase drop. You shouldn’t need much for 2 inches. You can just pick up some grade 8 washers and add them until the vibes go away. There’s some good posts about doing this out there.Nothing like that, but you may or may not need to drop the transfer case with some spacers if you get a shimmy on take off. I dropped mine anyway just to keep from putting anymore strain on my old u-joints. I had raised the jeep 2", so I figured I could stand to drop the t-case 3/4", but I'm not in rock country either.