Cruiser tranny doubler question

[NorthWestFab]

This planetary box looks very much like the Klune-V which is already marketed for Land Cruisers with both 16- and 19-spline counts. The Klune is also available in a 4:1 ratio. Can you specifically address the advantages (e.g., strength, cost, etc.) of the BlackBox over the Klune, instead of the NP203?

Thanks for your interest.

The BlackBox works using a similar planetary gear concept as the Klune, but there are some specific differences.

The BlackBox Planetaries are made by New Venture Gear. We source the planetaries that are used in Super Duty and 2.5Ton Trucks. They are torque rated to 5500ft-lbs.

We finish our Blackbox with a Hard Anodized Black Finish, this is highly resistant to scratching and corrosion.

As you can see in our crosssection, the Black Box uses a large 80mm ball bearing at both the input and output. This controls any shaft deflection and endplay is set from the factory.

Klune does not use an output support bearing. The mainshaft is supported only at the nose of the shaft, and by the splines of the input of the transfer case behind it. Also, endplay must be set by the user, which leaves a significant margin of error, and failure if endplay is not set correctly.


Klune's "David' model that uses a 4:1 uses planetaries manufactured offshore for Tera Mfg. This uses a 'two stage planetary' that is pressed together. If the two halves of the gear are not pressed within 0.0001" when they are loaded up, the gears will not load evenly and WILL fail. consistantly aligning two pressed components to this spec is not realisitc. New Venture did in-house test with two stage gear, and for this reason were never used in any of their transfer cases.


As far as cost, the Black Box retails for $1599. I have not seen a Klune priced at a level this competitive.

-Kyle
NWF

 

[Tapage]

Thanks for your time and explanation Kyle .. the price looks pretty well IMOP !

 

[brokenparts]

damn, that's sexy....

 

[Rigpig]

...i've got my name on one of them!!!...

 

[Mace]

So it uses the NV271 planetary gearset..


6 pinion planetary right?

 

[Dusty]

Klune does not use an output support bearing. The mainshaft is supported only at the nose of the shaft, and by the splines of the input of the transfer case behind it. Also, endplay must be set by the user, which leaves a significant margin of error, and failure if endplay is not set correctly.


Klune's "David' model that uses a 4:1 uses planetaries manufactured offshore for Tera Mfg. This uses a 'two stage planetary' that is pressed together. If the two halves of the gear are not pressed within 0.0001" when they are loaded up, the gears will not load evenly and WILL fail. consistantly aligning two pressed components to this spec is not realisitc. New Venture did in-house test with two stage gear, and for this reason were never used in any of their transfer cases.
NWF

couple of months ago I spoke on the phone with the owner of klunev after coresponding via email with him. he actually has a 93 fzj80 and loves it. he basically said that he doesn't have the time now to investigate an option for the 80. He said that he had seen the 80 tcase and slushbox and he was concerned about adequite mainshaft support in the application. I didn't understand his concern at the time but perhaps he was refering to above

 

[Stumpalama]

I have an LX450 that I will graciously donate as a test platform for the black box Seriously. How long would you need it? I'm in Langford so not too far a trip.
It'll be out of town for a couple weeks, but could work something out for October.

 

[Radd Cruisers]

Saw it on the table apart, it does have 6 planetary gears.

So it uses the NV271 planetary gearset..


6 pinion planetary right?

 

[Radd Cruisers]

With how busy Kyle is he would not be looking at doing it that soon, I will likely have a 80 series conversion and have a tranny in time for him to design the unit.

Rob

I have an LX450 that I will graciously donate as a test platform for the black box Seriously. How long would you need it? I'm in Langford so not too far a trip.
It'll be out of town for a couple weeks, but could work something out for October.

 

[theferg]

Bump. (And subscribe.)

 

[CJBury]

Has there been any progress on this?

 

[CreeperSleeper]

x2 80 owners everywhere want to know!

 

[Radd Cruisers]

I think Kyle has his plate pretty full at the moment and might look at this install later this year.



These things would sell tho......





Maybe he will chime in....

 

[Overlord]

If used with the split-case, will it be clockable?

The site says as much: NorthWest FabWorks - Products - Black Box Gear Box

"360 Degree Clocking
The Black Box Will allow you to rotate your transfer case 360 degrees. There is no limitations on orientation with the Black Box. "

 

[bull]

Bumps

 

[jodo]

Anything, anyone, Hello. Now I want one.