I'm going from a drop shackle to factory shackles plus a 2 inch block. Do I need to shim my pinion angle the other way now? The kit did not mention it, but it seems like you would need to shim it the other way to try and keep the angle the same. I searched and did not really find a consensus. Thanks, I just don't want to take this all apart and then need to add it back. 2005 rwd supercrew