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NP231 doubler / crawlbox

Gollywomper

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I have an email in to Behemoth for their 205 case dimensions. I will update this post when I get them. The dimension on their site shows it roughly the same exterior as their 300 which I find difficult to believe.
 

Deputy Dodge

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I have that kit but it's rough. I was going to originally do that but decided to go with the doubler kit. If someone wants the parts for the NP231 doubler I can get all the parts and I'll sell it for 50% of that price, I'll never use it but it's going to require some fab work on their end.



OH are you talking about the black unit? *EDIT* yup okay I'm getting caught up now on all the pages in this thread, I jumped in without knowing everything yet!
You have the FS kit? What makes it "rough"?
 

Wildman

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.i can't find info on the output spread dimensions for the NP231 i'll have to run out and get under it, it's 19*.........................i don't wanna but i will.

go it.....9.5".

So a D300 is just shy of 1" narrower than the NP231. Interesting for sure.

I'd sure like to have some type of mock up case to be able to see how a D300 fits. I'd be curious to see what had to be done to get it to work with the 46RE.
And I wonder if the Jeep 44RE or 46RE is different? Have to try and do some searching and see what I can come up with.
 

Gollywomper

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So a D300 is just shy of 1" narrower than the NP231. Interesting for sure.

I'd sure like to have some type of mock up case to be able to see how a D300 fits. I'd be curious to see what had to be done to get it to work with the 46RE.
And I wonder if the Jeep 44RE or 46RE is different? Have to try and do some searching and see what I can come up with.
I wonder how close one could get to the stock 231 offset by clocking the 300 flat?
 
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Wildman

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I wonder how close one could get to the stock 231 offset by clocking the 300 flat?

I don't know. Clocking can really help makeup some things but I think 8.55" centerline to centerline is tight no matter where it's clocked. But since most of us aren't working on TJ/LJ's everyday like Blaine it's hard to know.
I guess I should be happy I have the STaK's but unless I want to really CHOP the crap out of my floorboards I've got mine about as flat as I can go.
Here the dimensions for the STaK's Monster box.

I'll be watching to see what the NP205 measurements come out to be.


STaK Demension .jpg
 

someguysjeep

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I wonder how close one could get to the stock 231 offset by clocking the 300 flat?
the 231 sits flat across and i already had to move/rework the trans fluid lines that had a wide bend on um and got into my travel zone.

i measured, and the stock 2" front driveshaft has 1.25" of clearance to the trans. so looks like a 300 would put me at a 1/4" clearance if i stayed with a 2" driveshaft.

how would those joints like rotating on a downward and sideways angle? be similar to the 8.8 being offset ya?
 
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Wildman

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Here is the NP205 offered by Behemoth Drivetrain that is getting installed in a rig for KOH. It's a rig from Rily Racing. https://www.facebook.com/RileyRacing4504/ and is being setup by Rock & Road Performance https://www.facebook.com/rockandroadperformance/




 

Gollywomper

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Here is the NP205 offered by Behemoth Drivetrain that is getting installed in a rig for KOH. It's a rig from Rily Racing. https://www.facebook.com/RileyRacing4504/ and is being setup by Rock & Road Performance https://www.facebook.com/rockandroadperformance/




Man I just dont think $2200 for an aluminum case is a good investment. Just tough to justify. Add 4-1 gears, seals and you are over an atlas.
 

Wildman

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Man I just dont think $2200 for an aluminum case is a good investment. Just tough to justify. Add 4-1 gears, seals and you are over an atlas.

I agree with you to a point. If you are really trying to save weight and want stronger drivetrain components then I can see it. And no one is making lower gears for the NP205 that I could find. So the stock 2:1 gears and 2.72 gears in a doubler if you want the gear reduction.

Yes it is in the same price range as a Atlas but if size and weight matter?
 

someguysjeep

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ok i thought i saw the 1st atlas design was based off of the 300 is that true?
if so how'd they get another inch in the output separation into the design later?
 
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someguysjeep

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I should be happy I have the STaK's
for sure since you are tight as is, 1-2" inside and you'd have a good bit more to sort.

i wonder if the use of a doubler box giving it more length could maybe get it a tad better angle from that further back point.
 

SkylinesSuck

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Price aside, size especially and weight also are the biggest consideration for me as a means to getting a 4:1 ratio. It seems an Atlas is a tight squeeze with a tummy tuck and length is also a limfac with a TT because DS angles. Less weight is just a very desirable bonus for me.
 
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Wildman

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ok i thought i saw the 1st atlas design was based off of the 300 is that true?
if so how'd they get another inch in the output separation into the design later?

Actually I thought it was mentioned that it was based off the NP205. Which based on measurements makes sense.

for sure since you are tight as is, 1-2" inside and you'd have a good bit more to sort.

i wonder if the use of a doubler box giving it more length could maybe get it a tad better angle from that further back point.

But also remember I'm running 1350 joints and my shaft diameter is 2.75" if I dropped it to a 2" diameter I'd gain a lot in clearance. It'd still be tight.

Price aside, size especially and weight also are the biggest consideration for me as a means to getting a 4:1 ratio. It seems an Atlas is a tight squeeze with a tummy tuck and length is also a limfac with a TT because DS angles. Less weight is just a very desirable bonus for me.

Yes these are all the pluses of the D300.
 

someguysjeep

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Actually I thought it was mentioned that it was based off the NP205. Which based on measurements makes sense
ok maybe i thunk wrong , quite possibly i'm always on the verge of spilling info to seep more it.

for the 205 i think we would want to try and go for an aftermarket case, the big honkin stock case has an odd shape. and if the 205 has a better spread that could be the deal.

i did a bit of cost comparison from Midnights D300, 3600 tag for a complete unit, and 1400 for just the case and stuffing it at home, the cost figured out to be about 300 over parts , which seems a fair assembly fee, even though it looks simple as hell. once they get 205's going maybe he'll be doing an affordable case.
 
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Wildman

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once they get 205's going maybe he'll be doing an affordable case.

Yes I'm hoping Midnight has a better price point than Behemoths prices. I'd like to see it around $1500-1600 and you add the internals.
A stock NP205 is like the STaK's in they are both pigs. I think a stock 205 weighs over 100lbs and my STaK's is 150lbs.
 
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Wildman

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Damn I was off a little bit. It weights 140lbs dry. So almost the same as a STaK's transfer case.

 

Gollywomper

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Yes I'm hoping Midnight has a better price point than Behemoths prices. I'd like to see it around $1500-1600 and you add the internals.
A stock NP205 is like the STaK's in they are both pigs. I think a stock 205 weighs over 100lbs and my STaK's is 150lbs.
Midnight is $1400 I think.
 
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Gollywomper

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Yes I'm hoping Midnight has a better price point than Behemoths prices. I'd like to see it around $1500-1600 and you add the internals.
A stock NP205 is like the STaK's in they are both pigs. I think a stock 205 weighs over 100lbs and my STaK's is 150lbs.
Stock 205 is 130-140lb I believe.

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