How attentive should I be to this? The engine and tranny are in now and their at about 5-6* down towards the rearend. I also lowered the truck (4-6) and the rearend is 8-10* up towards the tranny. I don't have the cab or bed on the frame just to make it easier, but I didn't know if it would change these angles or not. Oh, did I mention the engine and tranny are in the frame