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Grant-o-vations Building something crazy? Trying something totally out of the box? Post it here. Lets see what all those wacky minds are doing out there. These posts should be somewhat technical in nature, but dont necessarily have to be 4x4 related.

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Old 11-22-2005, 11:09 AM   #1
samwe
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Default 6x6 ideas and discussion

I want to build a 6x6, not sure I ever will, but that won't stop me from talking.

I am thinking of somethign with 3 evenly spaced sets of wheels.
The front and rear steer.

I would like an enclosed chassis (so it floats).
Ford 9" axles could be used for all three. The axles would be as wide as the tub and the axle shafts would end with yokes for Ujoints stickong out of the tub.

A adequate spindle will be found, and upper and lower a-arms fabbed. Ideally all 12 arms would be the same, or at least all lowers match, and all uppers match.

If I get time to day I will use that inexpensive CAD program, MSpaint and draw something.

Anyone else think about this when they should be doing somethign else?
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Old 11-22-2005, 11:17 AM   #2
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Default Re: 6x6 ideas and discussion

Talk with Gus he has a 9" or two layin around! Ask him what he would like for them!
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Old 11-22-2005, 12:30 PM   #3
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Default Re: 6x6 ideas and discussion

Visio is not a cad program, but here's a starter.
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Old 11-23-2005, 05:31 AM   #4
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Default Re: 6x6 ideas and discussion

Quote:
Originally Posted by CRUNCHY
Talk with Gus he has a 9" or two layin around! Ask him what he would like for them!
I have a 9" that is going to the land fill if no one wants it.

Gus
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Old 11-23-2005, 09:43 AM   #5
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Default Re: 6x6 ideas and discussion

My ideas for a 6x6 have been along the lines of those Russian tube-tire buggies. Independant suspensions, lightly built. I'd consider Toyota front IFS assemblies - they get cut off and tossed fairly often, for one thing, and they are light, and strong. The aluminum Mutt-diffed rig down in Kenai that wheels with Brook every so often is a good example. M151 diffs are great 'cause they have front-and-rear flange on the diff - you could in theory put as many in a row as you want.
Standard diffs would need some sort of 3rd-output tcase or something. More weight, more complexity, so the Mutt-diffs are attractive for that. There was a 6x6 Mutt out behind Wasilla Lake for a few years, it showed up on Bogard for sale, it's out hunting somewhere now, I'm sure.
Another platform might be Subie parts. More cheap stuff, light, and strong for it's size. I've thought a rear-engine transaxle, perhaps a VW diesel, would work well. Keep the front light so it climbs out of whatever you get it into.

Grant's triangle-wheel ideas and plans made me think of a another option, back when he was messing with that. Just a standard 4x4 drivetrain, but with a walking-beam pair of wheels off the back, driven off the rear axle. Really, Grant was looking to build just that, but on all 4 wheels. I'd just do that in back, keep the front simpler. A walking beam can be "half-tracked" quite easily, as well. This type of config could be built a lot beefier than an independant rig can (at least it would take less complex fabrication - independant CAN be very beefy, look at the H1).
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Old 11-23-2005, 10:59 AM   #6
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Default Re: 6x6 ideas and discussion

I have thought about teh subie parts too.
In all cases the tricky part is the middle axle. Have dual Tcases adds lots of unneeded weight. Your description of a Mutt diff sounds good.
In a lightweight vehicle with soft suspension I think breakage is less likely.

Someone should make a 9" center that is for use in rotated housings so it looks like a mini rockwell...
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Old 11-23-2005, 11:39 AM   #7
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Default Re: 6x6 ideas and discussion

FWIW, as far as a middle tcase - older Nissan cases are all gear, about the size/weight of a Samurai case, but 1:1 in high, unlike the Samurai. I'd guess the weight at 50 or 60 pounds? Not horrible.
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Old 11-23-2005, 11:44 AM   #8
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Default Re: 6x6 ideas and discussion

GS> On the vehicles you use, are those regular innertubes?
GS> What size tube do you use?
GS> Are they special service or thick? Do you know how thick they are?
GS> What were the tubes orrigionally used on?
GS> How heavy are those vehicles on average?
GS> Thanks for your time,
GS> Grant

Hi,

We use special tubes of ultralow pressure 1300530533. These tubes are made
for us specially in small amounts. These tubes have good durability.
Our machines of different models have weight from 800 up to 1200 kg.

Best regards,

Vladimir
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Bobby after seeing pictures of "the tires"
Quote:
Originally Posted by Longfield
After seeing these tires I think that the 30 splines would get scared and go limp and not go in the housing! I think these tires have rockwells writen all over them!


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Old 11-23-2005, 11:55 AM   #9
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Default Re: 6x6 ideas and discussion





That bar running along the body looks like a drive shaft for the rear wheel.
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Bobby after seeing pictures of "the tires"
Quote:
Originally Posted by Longfield
After seeing these tires I think that the 30 splines would get scared and go limp and not go in the housing! I think these tires have rockwells writen all over them!


www.brokenyoke.com
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Old 11-23-2005, 12:02 PM   #10
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Default Re: 6x6 ideas and discussion

Quote:
Originally Posted by deepmud
FWIW, as far as a middle tcase - older Nissan cases are all gear, about the size/weight of a Samurai case, but 1:1 in high, unlike the Samurai. I'd guess the weight at 50 or 60 pounds? Not horrible.
Erik, in the spirit of the name of this form I suggest a chain drive box. They could be easily half the weight of the nissan box.
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Bobby after seeing pictures of "the tires"
Quote:
Originally Posted by Longfield
After seeing these tires I think that the 30 splines would get scared and go limp and not go in the housing! I think these tires have rockwells writen all over them!


www.brokenyoke.com
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Old 12-13-2005, 08:24 AM   #11
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Default Re: 6x6 ideas and discussion

I saw a pic of one built by US 6X6 that they off set the rear diffs and used what looks like a transfer case bolted to the front of the first oneto run the second rear diff. Hmm bring lots of ideas to the mind!! Check here interestingly enough the guys over at PBB think it is a photo chop.
http://www.xplorermotorhome.com/6x6xcursion.html

Last edited by bigun; 07-08-2006 at 08:46 PM.
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Old 07-03-2006, 05:35 PM   #12
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Default Re: 6x6 ideas and discussion

I saw reference in Pirate to someone using a NP205 with parts from a NP200 to make it dual output.
I googled and found this:


I am intrigued.
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Old 07-04-2006, 01:31 PM   #13
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Default Re: 6x6 ideas and discussion

A buddy of my dads lengthened a Jeep frame and installed IFS for all 6 wheels. I can't remember which IFS he used but it was beefy, the rig weighed alot. It was four rear wheels and two front (only the fronts steered). It sat on 31" terra's. Pretty much a mini moose buggy. I know he was going to try and build a lighter one. I'll see if I can eventually get some pictures and specs.
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Old 07-04-2006, 01:55 PM   #14
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Default Re: 6x6 ideas and discussion

You need to PM 66fomoco on the board. He built a 6x6 on tractor tires out of an early bronco years ago. He would have a ton of information.
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Old 07-06-2006, 02:22 AM   #15
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Default Re: 6x6 ideas and discussion

how about a drive through diff? Carmicheal 6x6 Rovers used 'em or... TGB volvos, Ive got a middle diff with the drive through on it in the barn if you want some pics?
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Old 07-06-2006, 02:27 AM   #16
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Default Re: 6x6 ideas and discussion

Quote:
Originally Posted by Jez
how about a drive through diff? Carmicheal 6x6 Rovers used 'em or... TGB volvos, Ive got a middle diff with the drive through on it in the barn if you want some pics?
Jez...That would be cool...Post up the pictures...
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Old 03-18-2007, 07:36 PM   #17
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Default Re: 6x6 ideas and discussion

I beleive this is easy to do with M151 IFS, because the pinion that goes through the diff, kind of like a Duece and a hafl or 5 ton axle would... except the M151 is IFS, which is what you are looking for.






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Old 03-20-2007, 11:11 AM   #18
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Default Re: 6x6 ideas and discussion

How hard are those to get?
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Old 03-20-2007, 01:02 PM   #19
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Default Re: 6x6 ideas and discussion

I'd get a 9" or 14b gear over box from USA6x6. They are $2700, but they solve all the problems.
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Bobby after seeing pictures of "the tires"
Quote:
Originally Posted by Longfield
After seeing these tires I think that the 30 splines would get scared and go limp and not go in the housing! I think these tires have rockwells writen all over them!


www.brokenyoke.com
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Old 03-20-2007, 01:04 PM   #20
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Default Re: 6x6 ideas and discussion

complete 151's are rare, rare, rare, but the Army Surplus of diffs is good - I think $150 each maybe when I looked a few years ago?
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Old 03-20-2007, 01:16 PM   #21
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Default Re: 6x6 ideas and discussion

Someone should make a top loader diff for a 9" . It would be easy to rotate existing housings to work. That would be cool. A full floater conversion and it would be a very useful axle.
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Old 03-20-2007, 07:14 PM   #22
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Default Re: 6x6 ideas and discussion

I have an IFS front out of a 1 ton chevy (2wd) - Free
for middle wheels
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Old 03-20-2007, 09:12 PM   #23
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Default Re: 6x6 ideas and discussion

Someone making their own two stage diff for a 9" is going to cost way more than the gear over that daniel sells. It basically gets you the same pinion height too.
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Bobby after seeing pictures of "the tires"
Quote:
Originally Posted by Longfield
After seeing these tires I think that the 30 splines would get scared and go limp and not go in the housing! I think these tires have rockwells writen all over them!


www.brokenyoke.com
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Old 03-21-2007, 12:01 AM   #24
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Default Re: 6x6 ideas and discussion

I wasn't talking about reality!
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Old 03-21-2007, 12:24 AM   #25
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Default Re: 6x6 ideas and discussion

Reality Stinks.... I know...
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Bobby after seeing pictures of "the tires"
Quote:
Originally Posted by Longfield
After seeing these tires I think that the 30 splines would get scared and go limp and not go in the housing! I think these tires have rockwells writen all over them!


www.brokenyoke.com
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