A thorough inspection of the sailboat rudder while it’s in place can often yield clues to whether removal is the right approach. In many cases, the only portion of the rudder that can’t be easily inspected is the stock, where it passes through the trunk or log. Depending upon the design, removing the stuffing box from the trunk may enable the inspection of much of the stock, particularly where corrosion is most likely to occur, at the stuffing box’s packing. Here, wet packing remains in contact with the stock, which is nearly always a stainless-steel alloy. If the vessel remains dormant for long periods, as far too many do, the oxygen in the water contained within the trunk becomes depleted, which can lead to crevice corrosion of the stock, and this nearly always occurs directly beneath the packing or, if one is present, beneath a bearing.