World of Warcraft players striving to finish the “Nine-Tenth of the Law” Achievement should find and open five special chests called Muff’s Auto-Lockers.
These elusive containers are hidden deep in the Undermine zones and are meant to reward adventurous adventurers by offering unique items that combine into something much grander.
Muff’s Auto-Lockers In WoW
Muff’s Auto-Lockers are five magic Electrified Lock chests specifically found within the Undermine.
They contained some specific Gorillion parts, and users who collected all five were awarded the “Nine-Tenths of the Law” Achievement.
Moreover, you will also get the “Going Goblin Mode” Meta Achievement, along with the Nine-Tenth achievement, which makes the whole thing a pretty valuable one for those completion-minded players.
All Five Muff’s Auto-Lockers Locations In WoW
Muff’s Auto-Lockers are scattered throughout the Undermine, and each one contains a unique item. So, to collect all of them, you need to explore different regions of the map.
Gorillion Fork
You’ll find this Auto-Locker behind Madam Gosu at the Black Market on Hovel Hill. It’s located in a corner beside some barrels.

Players can also follow the coordinates 23.93, 45.25 to reach this chest Location.
Gorillion Engine
The Engine locker sits underneath a staircase leading to a guarded warehouse southwest of the Gallagio.

You’ll know you’re in the right area when you spot a giant sign featuring a bomb, TNT, and a goblin’s head on the opposite side. Coordinates: 56.59, 55.48
Gorillion Chasis
This Auto-Locker is found down the side of a restaurant in The Vatworks. And if you’re standing in the right position you would see Causticaria, a giant slime elemental, over the edge.

Players can also follow the coordinates 34.17, 82.90 to collect Gorillion Chasis in World of Warcraft.
Gorillion Grease
The Gorillion Grease can be found on the cliff overlooking the Emerald Hills Golf Course. Just keep an eye out for the shining auto-locker on the cliff.

If you get stuck in the location, you can also set your coordinates to 71.35, 85.92 to get the chest.
Gorillion Batteries
The last Auto-Locker, containing Gorillion Batteries, is nestled on a cliff overlooking Blackwater Marina. Head for the stage in this area and just go upward to locate it.

The last chest might confuse you as it is located above the small hill-like structure, so for easy completion, you can set map coordinates 75.05, 22.93 to get the final chest.
After completing all five Gorillion parts collections from Muff’s Auto-Lockers, you will achieve the “Nine-Tenths of the Law” Achievement, but don’t stop there.

Moreover, after earning the achievements, right-click on any of the parts in your inventory to combine them into the “Inoperative Gorillion” and launch a quest of the same name.
Once done, bring the quest to Ditty Fuzeboy at the specified point to receive your grand prize: a robot gorilla Battle Pet named “Gorillion.” It is a rare trophy for thoroughness in searching the Undermine.