If you remove any of the stock studs from the stock housing make sure and use a really good thread sealer on whatever fastener you put back in I didn't on one stud that got push out on my Duster, it was one of those 4 below the gear oil level, it leaked of course, 3 times I ended up having to use thread sealer on all the studs and nuts that where below the gear oil level The stock rear ends came with flat copper washers that must have acted as a thread sealer from the factory