Ok so bought my truck and it has a 1.5" rear lift and had some driveshaft vibration while accelerating. I dropped my carrier 1" and can't quite get it to go away yet still on hard fast starts. My question is, do I keep dropping? Or do these truck need a tapered block? Because mine is straight. I just find it weird dropping any more when trucks that have a 6" lift are only dropping about 1.5".