Here's the deal, I have really beefy bumpers front and rear and I'm worried about a solid front or rear impact doing damage beyond the plate or channel mounts of the bumper. Possibly tweaking the frame out or collapsing it in. I have my rig down to the frame, weight is almost no issue, everything is accessable, however boxing the frame doesn't look like fun, and the frame sure isn't straight, and I'm worried about the weak points. Its near impossible to box around all the mounts and get everything just right, seams like the 2 points that are weakest when boxed that thick would be the stress points and eventually give. I've read many post on this board about frame integrity and how not to tie a cage into the frame but impact damage is my question. Do any of you rock crawling guys box the front or the rear at all? I'm thinking of just upgrading my crossmembers and maybe using a V design to connect the rear and maybe front most point to the frame rails at a 45. The front already seems to have lots of structural integrity. Opinions, Pictures? I bought a blazer with a wrecked front, and the frame tweaked around the front pass shock mount, and i wrecked another blazer with a trailer attached and it pummelled my class V hitch and the frame was fine, minus the bottom where the 4 grade 8 bolts mounted.