Orion and Atlas transfercases avail soon

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I don't see any value in this.

Slee says they are working on a bolt on crawler with no gas tank mods, which gives you stock low range and compounded low range as you choose - that is a better range of choices than just an Atlas.

On the big climbs, you engage the crawler for super crawl ratio, and then disengage for the time between obstacles in regular 4lo. Can't do that with an Atlas - you have to choose your ratio and live with it while in low range.

What am I missing?

You make a very valid point but don't forget there is a 4 speed Atlas case that offers just the options you mentioned and choices of multiple gear ratios for each range.
 
I just got this from Atlas

Dustin,
No, we are not making an Atlas with a rear output to the pass
side. If the gas tank is in the way then the Orion will be the only
option.

Ok so no more worries about the atlas.

How about a dana 300 with 3.8:1?

http://www.stak4x4.com/replace-a-case.htm

Wrench,
did you have the crawler box?
 
Nay,

Slomo is correct. Like I mentioned before the 4 speed is the only way to go. If you were going to just get the normal Atlas t-case you would be much better off getting the Orion. At that point they are essentially the same. The Atlas 4 speed is essentially a dual crawler so you have a bunch of options with the low end being a 10:1 reduction. Multiply by the low gear in the trans and your diff gears and you end up in the 200:1 realm. That is crawling... and that is what the Atlas will get you. If you're not rock crawling then it won't make sense to you and that's okay. We rock hounds know what we need and the prospect of doing some mods to the 80 to put a 4 speed Atlas in makes the mouth water just thinking about it.

As for the Marks crawl box... That is a great solution, I just would have a hard time spending $3500 for a 3:1 reduction. Anybody have experience using one. What's the skinny on it?

Kyon
 
this is the "2006 Ultimate Adventure Truck and Driver Profiles - Christo Slee - 1994 Land Cruiser"


http://www.4wheeloffroad.com/2006ul...ture/131_0611_christo_slee_1994_land_cruiser/

this is the comment about the crawler box:

"Crawler box had some heating issues (OK, cooked the Amsoil!)"
Has anyone seen better results?

Both Gary and myself have received new internals for the crawler box that should take care of the overheating issue. He will probably get his installed before I do. Will update when we have done so.

The crawler is an awsome solution, just not for everyone. The heating issues were a pain but should be a thing of the past.
 
As for the Marks crawl box... That is a great solution, I just would have a hard time spending $3500 for a 3:1 reduction. Anybody have experience using one. What's the skinny on it?

Kyon

It is 3:1 on top of the transfercase. So you have standard low range and low low.

Atlas would be nice, but requires the same mods as the Marks box. Gas tank etc etc but for the motivated, that is not an issue.
 
So maybe that Orion Heavy Duty might be the solution? It seems a shame to go backwards in technology, but it may end up being the solution. I don't see the sense in going from 2.5 : 1 to 3:1, but I could see going to 4:1 if it avoided gas tank mods.

I'm curious as to what the Slee "bolt on solution" may be. Any hints to share Christo?
 
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Nay,

Slomo is correct. Like I mentioned before the 4 speed is the only way to go. If you were going to just get the normal Atlas t-case you would be much better off getting the Orion. At that point they are essentially the same. The Atlas 4 speed is essentially a dual crawler so you have a bunch of options with the low end being a 10:1 reduction. Multiply by the low gear in the trans and your diff gears and you end up in the 200:1 realm. That is crawling... and that is what the Atlas will get you. If you're not rock crawling then it won't make sense to you and that's okay. We rock hounds know what we need and the prospect of doing some mods to the 80 to put a 4 speed Atlas in makes the mouth water just thinking about it.

As for the Marks crawl box... That is a great solution, I just would have a hard time spending $3500 for a 3:1 reduction. Anybody have experience using one. What's the skinny on it?

Kyon

I haven't been keeping up with things in the Atlas world :D

Of course, 80's are too big for trails that require a 200:1 ratio. No mass market for 80 owners needing that kind of crawl ratio.

But hey, somebody should do it, although with the compound rear driveshaft angle issue you're definitely going to a centered diff replacment rear axle. This becomes a $10K plus project in a real hurry.
 
Wrench,
did you have the crawler box?
Yes I do. I'm currently waiting for the upgrade kit to fix the heating issues then it is going in ASAP! Gas tank is done.
 
The cruiser isn't much bigger than the hardcore stuff out there if you get rid of the heavy top. (just roll it once)

look at all jeeps getting stretched on pirate. 112" is where I want to be. my big ol butt swings all over the place but it has lots of armour.

the 80 series has as much right to be crawling as any mini or runner-the drivetrain is beefier. one could argue that the bigger (heavier) truck doesn't need serious gearing because it shouldn't be that hardcore but one could also argue that the bigger truck needs the gearing more to better protect itself

dont tell those hot cheerleader they cant join your wrestling team because they are different--open your mind and embrace them and find them pink singlets and let them wrestle as best they can. the whole team will benefit
 
The biggest single improvement I ever made to my FJ40 was the lower gearing afforded by the SM420 transmission. You bet I want the same for my 80. Wagons just rock in my book, so much so, that I am thinking of making my FJ60 my hardcore truck, and giving the 40 to my son. The first mod, would be a Marlin Toybox. Low gears means slow and controlled speeds. 80s just move too fast.
 
Of course, 80's are too big for trails that require a 200:1 ratio. No mass market for 80 owners needing that kind of crawl ratio.

The 173:1 crawl (4.7 ToyBox) in my FJ60 is indispensable. It opened up so many trails and made driving so much more fun. Going slow in tight places or where the "good line" is a matter of fractions of an inch, redefines wheeling a "too big" vehicle. Big isn't that bad if you are in control. Low gears give you control.

Given the natural capability of the 80 Series, a crawler option would be a must do mod to me. I think there would be a good sized market.
 
It is 3:1 on top of the transfercase. So you have standard low range and low low.

Atlas would be nice, but requires the same mods as the Marks box. Gas tank etc etc but for the motivated, that is not an issue.

Understand the 3:1 in addition to the t-case. I just thought that $3500 was a lot when you contrast it with getting more for less with the Atlas or Klune. I know you can't get either of those but I thought it was worth researching further. I think I'll keep moving on with the Klune research. That seems like it would be the easiest since you wouldn't have to deal with the drive shaft (except length).

So can you explain what exactly needs to be done to fit the Marks box? or Atlas for that matter...

I want a bolt-on, no tank mod, no body lift box that will hold up for around $1500. I feel like that is my last hurdle in my 80 build.

Don't we all... Now where did I put that can of unobtainium?

Kyon
 
Going slow in tight places or where the "good line" is a matter of fractions of an inch, redefines wheeling a "too big" vehicle. Big isn't that bad if you are in control. Low gears give you control.

x2 I understand there would be more torque through the driveline than stock but the lower speed would not only help protect the driveline from sudden shock loads associated with bouncing around in the rocks with your foot in it to get over a larger obstacle, as pismojim said the extra control and precision would help keep the body work off the rocks offsetting some of the size difference.
 
The cruiser isn't much bigger than the hardcore stuff out there if you get rid of the heavy top. (just roll it once)

My point exactly. The Atlas is a sorely needed 80 series mod once you've gotten rid of that heavy top :D

There was a recent thread on cutting off the cargo area, and Slee was saying you just don't lose any weight - anything you cut off is typically replaced by tube and the weight remains. Slee has also said that the stock axles aren't up to that kind of wheeling in the long run and he is looking into Rockwells.

So basically, you are going to cut off the majority of the body, replace the transfer case and both axles, and still have a rig that is heavier and wider than it's peers and still has a seriously low hanging frame and has to be hauled around on a trailer. That's the long term reality of an 80 that is going to hit trails that require the kind of low gearing you get with an Atlas.

Which as was pointed out above, we have every right to do. Post 'em up when you get there :grinpimp:
 
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For now, the Orion is the best choice IMO. You do lose AWD, but it fits with minimal angle changes and a little old school gear noise....

rearshaftorion.jpg
 

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