This is a well thought out build

[justinc]

This is a well thought and very neat build, I imagine a bit heavy etc etc but the thought that has gone into it is amazing.

Dodge T-Rex 6x6 Rolls over camera man. - YouTube



JC

[Bigbjorn]

Interesting concept. Two forward diffs from a tandem drive on the rear. Wonder what breed those light double reduction diffs are.

What's up front? Waste of time and money if it has anything less than a 440.

[goingbush]

They are all standard Rockwell 2.5 ton final drives

[justinc]

Interesting concept. Two forward diffs from a tandem drive on the rear. Wonder what breed those light double reduction diffs are.

What's up front? Waste of time and money if it has anything less than a 440.

Apparently V10 Dodge engine, I reckon enough Torque there....:)

JC

[justinc]

They are all standard Rockwell 2.5 ton final drives

I was a bit concerned about the possibility of damage to the diffs due to the underlying vulnerability of the cover, but a few shots show some big scrapes so obviously he isn't concerned.
There are a few other Youtube vids of this thing, too.

JC

[jsp]

probably showing my lack of knowlege but is there enough braking force? there seems to be one disc per axle? Is this enough to hold up a car like this? and I would be scared the diff might let go or final axle's let go and having the brakes on the input to the diff would be useless?

[Bigbjorn]

They are all standard Rockwell 2.5 ton final drives

Apparently a military line. Non-current, no longer listed by Arvin Meritor.

[Bigbjorn]

Apparently V10 Dodge engine, I reckon enough Torque there....:)

JC

That should do it.

Last year in LA I came across a Dodge van that had a Viper power train replacing the 318. A nice q-ship. Painted matt black with surfer stripes. Nothing at all externally to give it away. Fat wheels on the rear were offset inwards.

[isuzurover]

Apparently a military line. Non-current, no longer listed by Arvin Meritor.

You need to spend more time in the US 4x4 scene instead of the muscle car scene.

Rockwells were fitted to these:
https://www.aulro.com/afvb/

They are very commonly fitted in the US. Practically all of the "mud bogger" guys use them.

[uninformed]

lots of bigger rock crawlers running Rockwells, mud racers, and mini monster racers like "king sling" . Most are modded, custom axles are available for them etc. Even a alloy housing if you have the $$$$$

[uninformed]

probably showing my lack of knowlege but is there enough braking force? there seems to be one disc per axle? Is this enough to hold up a car like this? and I would be scared the diff might let go or final axle's let go and having the brakes on the input to the diff would be useless?

have a look at the size of the pinions, diffs, alxes inside these things. One disc has its barking force multiplie by the diff ratio....but Yes I would also want a good working tranny brake.

[uninformed]

not sure how well thought out the design is/was??? are the rear load sharring? is that 2 very short panhards attahced to the diff center, one each rear axle???

[Bigbjorn]

You need to spend more time in the US 4x4 scene instead of the muscle car scene.

Rockwells were fitted to these:
http://www.davidallenracing.com/DSC04230.jpg

They are very commonly fitted in the US. Practically all of the "mud bogger" guys use them.

As I said, a military line, and non-current. I am more accustomed to dealing with the big brothers used on real trucks, not 2 1/2 ton diffs. Rockwell SUDD & SFDD. All these double reduction Rockwells are descended from the old original Timken design. I was not aware they were made in such a light rating.

[uninformed]

Brian, why do you refer to them as double reduction?

[crash]

the USA publication Fourwheeler did an article on this vehicle a few years ago. From memory I think it was an individuals build after seeing a Mopar Performance concept vehicle of similar design. I think it also competed in the magazines "Top Truck" competition as well. If you search 4x4 Trucks, SUVs & Off Road Vehicles | Truck, SUV & Offroad Vehicle Reviews - Four Wheeler Magazine (http://www.fourwheeler.com) you might be able to find more info.

[goingbush]

Brian, why do you refer to them as double reduction?

He's probably familiar with Mack bogie drive which has the similar configuration with double reduction

http://www.macktrucks.com/assets/MackMarketing/Brochures/powertrain/Drive_Axle_brochure.pdf

[crash]

A couple of articles about T-Rex, including the original concept vehicle.
1995 Dodge Ram 2500 6x6 - Four Wheeler Magazine (http://www.fourwheeler.com/featuredvehicles/129_0212_1995_dodge_ram_2500_6x6/index.html)
1995 Dodge Ram 2500/6500 6x6 Concept Truck - Four Wheeler (http://www.fourwheeler.com/featuredvehicles/129_0212_1995_dodge_ram_trex_6x6_truck/index.html)
April 2012 Trail's End: Chrysler T-Rex 6x6 - Four Wheeler Magazine (http://www.fourwheeler.com/departments/editorials/129_1204_april_2012_trails_end_chrysler_trex_6x6/index.html)
First Drive Dodge Ram T-Rex: Real-world 6x6 with A 26,000-Pound GCWR - Four Wheeler Magazine (http://www.fourwheeler.com/roadtests/129_9707_first_drive_dodge_ram_trex_6x6/index.html)

[c.h.i.e.f]

in regards to isuzurovers statement about mud boggers using rockwells this is similar...

Cummins jeep - YouTube