Bill, I recommend a turnbuckle or metal bar to go between the return idler mounts on both sides up front. The thickness of the hull here is no different from elsewhere, yet it has to withstand a lot more stress, carrying the track on their return run, as well as bearing the brunt of collisions with rocks and terrain. A long metric threaded shaft and a few nuts would do the trick bracing up the front by tying both sides together, kind of like the solution that Impact created for the KV-1 (you can't use this plug-and-play as the hull widths are different between the KV and the JS though), this picture I borrowed from Pcomm from a thread from another forum.