a miitary deuce and a half is only 13,500 empty. most of that is engine, and drivetrain. how are they easy to break? my frame hasnt cracked yet, but i guess owning and driving a 6x6 doesnt make me an expert. really? a 2.5 ton truck with 6 tires isnt very stable? thats odd..... a more simple way would be a driveshaft disconnect for the rear axle. lots of the 2.5 ton guys do it.
payload is a function of many factors. adding a rear dana 80 would have to increase the payload by almost 1/3 though since the axle would be able to carry more.

 

a t rex would be a cool show rig, but not really pratical

 

That T-Rex would be a slick rig if all you had to do is drive in a straight line and not have to turn!!

 

can someone please explain to me why the t-rex cant turn? im very, very confused.

 

a real life t-rex competed in the 03 top truck challenge featured in four wheel magazine

you might be able to still see photos of it on their website

 

I got to thinking... if they were able to set one up so that for every turn of the steering wheel, on the front wheels, equaled out to half a turn on the back, that might save on tires and give a smoothish turning radius... ? I wouldn't want to be the one to repair one, nor even design one... but it's still a thought lol

 

the reason i ask, is that tractors (peterbuilt, mac, freightliners...NOT john deere) are able to turn, which apparently is a feat for a tandem axled vehicle.

 

I was thinking along the same line's. The 10 wheeler look's pretty much like a little semi tractor to me.

 

T Rex is a joke.
Just like the V-10 motorcycle.

Chrysler ought to fix their existing problems before throwing money at projects like those

 

taken from first link
it does turn!, tighter than a dually? hmmm i knew it!!

 

"The tandem axle arrangement is a narrower track than dual-wheel vehicles and has a tighter turning circle (2 feet less) than dual-wheel vehicles with comparable wheel base"

Just what do you think the wheelbase of the T-Rex is?!?!

 

its 27 inches shorter wheelbase than a quad cab 8' bed dually truck. and it has an 8 foot bed.

what do you think the t-rex wheelbase is?

 

Dually=Training wheels for those who can't?????

 

Yep really.... We were not talking about a military duece and a half, but a Dodge conversion. If you have installed tag axles on single axle tractors as I have, you would know this. The military vehicle and my Freightliner is designed from the ground up for tandem axles.

The tandem axles try to go straight, the front wheels have to turn them, the frame flexes left and right especially at the front of the frame as it was not designed for the side loads involved in the tandem axle system.

If a heavy cross member is not added a couple of feet wide to take those stresses, the frame will flex diagionally in addition to the left and right flexing that happens. I have broken a couple of frames from just hanging a tag axle on the back.

Now if you are not loading it, what is the purpose?

For drive, you can use a 3/4 ton military transfer case that has two drive u joints out the back. Some of the older military vehicles had this setup, a carrier bearing mounted on the front axle and the shaft going to the rear axle from the transfer case.

might as well get some tracks like a Bob Cat uses and make a half track, then the rear can be a tag, with no gears.

 

Who voted V-10 Dually? Jack, can you tell? Someone needs to figure that out!!!