Any negatives to either of these covers, and will either interfere with future eaton e locker install? 3.5 metalcloak lift with trackbar. The spicer cover I noticed has a drain plug that seems placed right where it will get hit? I'm looking at these 2 covers for a couple reasons. 1-protection. 2-they appear to be shaped internally similar to the factory cover which I believe oils the diff better than most covers that are just a bowl.