I'm Still waiting on Team Serpent driver Frank to post his set up from The Dirt Nitro Challenge

Any other racers here race the DNC? The track is SICK...its where do most of my racing.
I have a ? in the build again. Step 16A shows a M5x4 grub screw going down inside the rear axle/hub carrier and to use loctite. Yet there is nothing in there threaded to screw it in to, doesn't make sense. help please.