Very good job what you made in the front axle , the neumátic spring is a pesent foto your any case about the torsión subframe , your case its not extreme because your frame is not a light truck like one Unimog, its made It for a Big amount of tones, so the torsión by It self is low, negative point is how It copy the Terrain, but whit a simple diamont subframe sould be perfect for your truck, good luck