Rift Quest:The Big Guns  

Search the Mechanical Debris for the parts you need.

• right side of road:
• Gear Assembly to the right past the bridge
• Hadrite Coolant just past the Gear Assembly
• left side of road:
• Enix Coil backside of the tree-stump, under the walkway
• Enerzine Compensator between two tree-stumps

Now,all you have to do is find a way back across the bridge. Guess you will just have to kill a bunch of Guardians...