Kill War Reavers in the Ruins of Thaurissan, then loot 3 Obsidian Pistons, 3 Flux Exhaust Sieves, 3 Thorium Gearshafts, and 1 Stone Power Core from the War Reaver Parts that they drop.
We keep golems here, as guards. The dwarves to our north also keep golems, but I'm not sure why.
Mainly just for killin', I suppose.
We could use some spare parts for our own golems, so here's what yer gonna do: kill theirs, then look for any parts that might've fallen on the ground. Salvage what ye can. Ye probably won't be able to salvage everything, so choose carefully.
You will receive: 75
We build these golems ourselves, ye know. A little mechanical work, a little elemental work... the results aren't half bad, if ye ask me.
This is exactly what we needed. I'll get the boys workin' on the next batch of golems right away.
Pick up  Prove Yer Allegiance before heading out. Then kill war reavers. They drop War Reaver parts on the ground at the spot where the player was when the reaver died!:
- You find a few salvagable parts in the ruined creature's hull. It looks like you will only be able to salvage one part.
Any two of:
- Salvage the Obsidion Piston.
- Salvage the Flux Exhaust Sieve.
- Salvage the Thorium Gearshaft.
- Salvage the Stone Power Core. These are rare!
Pick the power core as soon as it pops, otherwise, choose at random until the proper amount of pieces are gathered.
Optional breadcrumbs:  Mouton Flamestar or  Hero's Call: Burning Steppes! or  Warchief's Command: Burning Steppes!
-  Burning Vengeance
-  Stocking Up /  A Future Project /  Mud Hunter
-  The Sand, the Cider, and the Orb
-  Warlocks Have the Neatest Stuff /  Shadow Boxing
-  Return to Keeshan /  Return to Ariok
-  Chiselgrip, the Heart of the Steppes
-  A Needle in a Hellhole
-  Prove Yer Allegiance /  Scrapped Golems
-  Golem Training
-  A Perfect Costume
-  Into the Black Tooth Hovel
-  Grunt Work
-  The Kodocaller's Horn
-  Taking the Horn For Ourselves
-  General Thorg'izog
-  Trial by Magma
-  I Am the Law and I Am the Lash
-  Enough Damage For One Day
-  Morgan's Vigil /  Flame Crest
-  Blackened Ashes /  Latent Demons of the Land /  A Heap of Delicious Worg
-  Blood Tour /  Draconic Vanguard /  A Deal With a Dragon
-  Placing the Pawns
-  A Delivery for Thorg'izog /  A Delivery for Neeralak /  A Delivery for Xi'lun
-  Locked and Loaded
-  Assault on Dreadmaul Rock
-  Glory Amidst Chaos
-  The Spoils of War
Optional breadcrumb to Swamp of Sorrows:  The Bogpaddle Bullet