I'd love to give you guys my experience with 4x4Labs.
First off, I would absolutely buy one for my 100 but I have a cool ladder that I want to keep and I wanted to talk about dimensions, no call back.
I bought one for my 2nd gen 4Runner, when I got it I couldn't close it with the jerry can holder because the hi-lift mount hit the tire, lots of calls and I finally got a call back, they shipped me a new Jerry can holder with the hi-lift mount on the other side. Problem solved! They also didn't sent me any return packaging so I still have the jerry can holder. Score!
Fast forward a couple months and I'm on the white rim trail in Canyonlands, the weld on the spindle breaks, this happened pretty early on before any real challenging sections. Major bummer, had to hold it up with rope, was such a bummer to spend so much $$. This time I got a call back real quick and HD was super on it, told me bring the bumper back to Torfab on the pallet and they will pick it up. Said Luke is going to stand behind his products. Luke called me when they finished power blasting, re welding, powder coating, and apologized profusely. Got the bumper back, sold it for not much less than I paid and bought the LC.
I like 4x4Labs, I do think they are a bit hard to get a hold of, voicemails mostly go un-responded, emails are never returned, but in my case they made it right, no they didn't pay me for my time and I don't really think that's their responsibility, I'm just glad they made it right.
Now if they ever call me back maybe I can get that bumper for my hundee...