OK I have seen it all now, have you guys seen a double dually?
YouTube - 6x6 Truck

I am tpying with one hand while I hold my jaw up off the floor with the other...
Are both axles apply power, or is one axle going along for the ride?

 

I have not checked the link in the clip, but I did see an article in one of the diesel mags awhile back where someone was building custom PU like that for resale. All axles were functional.

 

Looks like I have a new project for my F350!!!

 

I've seen some of their stuff online, and it looks to be both axles are powered.

 

they had a write up on a guy in Diesel Power a few months ago that had built himself 8 or 9 tandem axle trucks his most recent one was an 08 ford 1 ton. Pretty neat

 

there's a USA 6X6 #20 that looks like a F-250 or 350 SRW that has the conversion kit. Shows it on the lift and all 4 wheels in the back are turning. Complete with air bags. Unique to say the least!

 

It's neat but looks unlevel on the road. The back end looks higher than the front end. I'd still have sex with it.

 

Did some checking and found out the company is out of business. Apparently, the ownwer made quite a few enemies with his questionable business practices. Don't know if the two are related, but that was what showed up in my searches. Leaves the business wide open to some enterprising person on this site?

 

Looks cool but somebody can't count. That's not a 6x6. Maybe a 10x8 - can't tell if there are dual tires in back or super singles.

 

lol the idea is 6 wheel drive. i haven't seen the video but i'm assuming it was a 4x4 dually with the tandem axle conversion or 6 wheels with 6 wheel drive (6x6) not counting the duals jus six driving hubs if 10x8 applied then my dually would be considered a 6x6 and not a 4x4 just my .02 cents.... Anyway anyone can do this, build a subframe mount the two axles and get custom drive shafts (other than the minor details) you're done you can also buy the military tandem 2.5 ton rockwells, but they are super huge as i'm sure you guys know.

 

Yep USA6x6 is O.O.B. (out of business). A little searching will pull up a lot of unhappy customers.