That is a very cool body mount system and a good idea. The reason that a brace system is important though is that the Mammoth Shock towers are a high stress part and they are mounted directly to the diff cases. The diff case tower mount goes back to the Mammoth's buggy heritage. The brace ties the two shock towers together and keeps them from collapsing in on eachother in a hard crash or a bad landing. The huge chassis is also prone to flex badly with no support from the top of the towers. Before I put the brace on I could actually flex the truck in almost any direction just by twisting it in my hands. Once the brace was in place the truck is rock solid. Comparing videos of unbraced mammoths to the way my truck runs over rough, rutted terrain at high speeds you can see the difference. My suspension does a lot more work than an unbraced truck. To me that means that if you don't have a brace the chassis is doing a lot of flexing and not letting the suspension do it's job. The brace also keeps the shock towers standing upright so you don't wind up with bent shock shafts.

The Mammoth is a fantastic truck but it needs to have a brace system installed to give it a "spine" . Lots of the folks that have problems with it are running it stock and bashing it hard. It's unfortunate that it has that weakness but it's a cheap and easy fix so why bother to wait until you bend towers and brake diff cases to put a brace on the truck.

In response to Pathogen's post. The diffs on the early trucks were not shimmed at the factory and were prone to blowing up under hard braking. XTM now shims the diffs so that problem has been reduced. You will occasionally hear a clicking in the diffs under hard braking but that happens with Maxx's and Savages and I even hear some complaints about it in the REVO already. The gears slip off eachother when you try to take a huge heavy truck from 40mph to 0mph quickly. The Mammoth doesn't weigh any more than a Savage it's just built to be bigger.