Why are the coils so long? As was mentioned the shock/shock shafts will buckle due to forces. If your buddy likes the setup/idea I am sure he can refine the concept. Seems to me if anything it would definitely work better on a lighter vs heavier vehicle.I swear i have seen something like this before. If not this could be something big in the shock world. What are your thoughts. Sharing for a buddy who built it.