Need a Thunderjaw Mandible for Varga's Icerail upgrade? Follow our guide to locate the Thunderjaw site, defeat the machine, and get the component you need to improve your weapon.
Alright, so you've gotten the Icerail weapon and now Varga wants to make it even better. To do that, she needs a specific part: a Thunderjaw Mandible. She's eager to help, so she'll tag along with you again for this errand. First things first, make sure you've finished the 'For the Werak' questline, as you can only start this errand after receiving the Icerail from that quest's reward box.
Once that's done, equip the 'Geared Up: Icerail' errand from your quest menu. Your map will show you the location of a Thunderjaw site. Keep in mind that you might not be able to fast travel all the way there, so be prepared to travel the rest of the way on foot.
When you get to the Thunderjaw's territory, follow the waypoint on your HUD. You'll find Varga waiting for you on a cliff overlooking the machine. Take a moment to get ready, and when you're feeling confident, initiate the fight!
After you've successfully taken down the massive Thunderjaw, the most important step is to loot its remains. You're looking for that Thunderjaw Mandible. Once you've got it, head back to Varga.
She'll take the mandible and work her magic, modifying the Icerail to fire Freeze explosives. Pretty neat, huh? These will be super useful for your next errand with her. After she's done, you'll get a dialogue option to start the 'Forgefire' errand, so choose that when you're ready to continue.
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