I found this product. It says it doubles the capacity. The torx bolts are covered,weatherproof, lockable and has a weather resistant tumbler lock.
http://www.4x4groupbuy.com/store/tuffy-toyota-tacoma-truck-security-lock-p-48890.html
This might be something I add in the near future.
A pair of those would be nice to have, something to put on the wish list. :thumbsup:
Now if the front cubbies had a door.........