Cruiser tranny doubler question

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Kamloops, BC Canada
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Buddy next door sells a unit called the black box, he wants to hook it up to a toyota tranny, so far he thinks it will only add about 5 inches to the total length of the tranny transfercase length.

What he is wondering which is the best suit years or cruiser tranny and spline counts.?

Ultimatly what is going to sell the most.

The black box already hooks up to a multitude of tcases and trannies.

www.northwestfab.com if you want to see the unit.


Rob
 
H41/H42 4 speed trannys are the most popular. They come in two output spline variaties. 16 and 19 spline output

H55f 5 speeds are next. 19 spline output.

If he made it to fit the 80 series rigs, probably a large group of buyers there. I don't believe they have any options for lower gearing yet. These rigs were built from 91-97. Someone from the 80 group will have more info.

Jeremy
 
"Length: At only 7.5" long the Black Box saves length, and leads to better driveshaft angles over longer dual transfer case options."


So how does a 7.5" long reduction box only add 5" to the drivetrain??

Most likely the 19 spline output and the 19 spline "split" tcase would be the best units.. But the 16 spline units would sell too (and be more likely to snap the tcase in half..)
 
As an 80 series guy, I would definitely buy this box in a heartbeat. There are 3 different 80 series autos, 2 have identical outputs for sure, and one COULD be different or they could all 3 be the same. I'm sure an 80 series guy would volunteer his rig for testing, and it would be AWESOME if it didnt require any floor mods.
 
The ideas are just being thrown around, the 5 to 6 inch box was a guess last night when he was doing a moch up. New housing design for the cruiser.



"Length: At only 7.5" long the Black Box saves length, and leads to better driveshaft angles over longer dual transfer case options."


So how does a 7.5" long reduction box only add 5" to the drivetrain??

Most likely the 19 spline output and the 19 spline "split" tcase would be the best units.. But the 16 spline units would sell too (and be more likely to snap the tcase in half..)
 
Looking at the 80 series stuff, not sure how hard it would be....... but its something Kyle is thinking about doing something.

Rob


As an 80 series guy, I would definitely buy this box in a heartbeat. There are 3 different 80 series autos, 2 have identical outputs for sure, and one COULD be different or they could all 3 be the same. I'm sure an 80 series guy would volunteer his rig for testing, and it would be AWESOME if it didnt require any floor mods.
 
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It would be a nice upgrade for 80 series ( coz they don't have the Underdrive options for T-case as " same " range price ) most if you considere the 7.5" lenght are not a real issue in the 80 or 60 series LWB ..

Only to deal with DS and the tranny cross member ..
 
Anybody got a spare 80 series I can borrow......


LOL



It would be a nice upgrade for 80 series ( coz they don't have the Underdrive options for T-case as " same " range price ) most if you considere the 7.5" lenght are not a real issue in the 80 or 60 series LWB ..

Only to deal with DS and the tranny cross member ..
 
$1600?

That's twice the price of a NP203 doubler. The NP203 is heavy and hangs down low, but it's cheap and tough. You get 2.78 over 2.0:1 with the black box, but ...


I'd rather spend the dough on an Orion 4.0:1 behind my NP203. I <3 4 speed x-fers. :D



Of course, that's a guy with plenty of wheelbase and a lot of trans/transfer options as well. YMMV if you have a 40 or 80.
 
I just got off the phone with kyle from northwest fab. he said they are very open to performing the needed machining to mate the black box to the 80 series. When I spoke with him he was even aware of the lack of options for the 80 and understands the niche he could fill. He was also aware of the gas tank issue. They had an 80 in the shop till recently its gone and they need a tcase/trany mule for fiment. he is willing to pay up to $100 to have a trashed tranny and tcase sent to him for fitment.

his email is

info@northwestfab.com

phone is
250-248-6024

I'm talking the 343

I am moving this info to 80 forum
 
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$1600?

That's twice the price of a NP203 doubler. The NP203 is heavy and hangs down low, but it's cheap and tough. You get 2.78 over 2.0:1 with the black box, but ...


I'd rather spend the dough on an Orion 4.0:1 behind my NP203. I <3 4 speed x-fers. :D



Of course, that's a guy with plenty of wheelbase and a lot of trans/transfer options as well. YMMV if you have a 40 or 80.

You've got it assbackwards.

203, 2:1 low range NOT 2.78.

BlackBox, Strong, 5500ft-lbs torque rated, Lower Low Range, Less than half the weight of the 203 /w 2.72 low range.

The blackBox is 40% deeper low range than a 203 range box.
 
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You've got it assbackwards.

203, 2:1 low range NOT 2.78.

BlackBox, Strong, 5500ft-lbs torque rated, Lower Low Range, Less than half the weight of the 203 /w 2.72 low range.

The blackBox is 40% deeper low range than a 203 range box.


I think you just misunderstood what I meant. I know that the 203 has a 2:1, I have one, and I could read what the blackbox has on the webiste.

I think it's a fine deal if you got the money or a lack of other options. It'd be great in the 80.

I think the 19 spline is the way to go for the earlier trucks, then again AA doesn't even sell a doubler kit for the 19 splines, only for the 10 and 16 splines. I don't know if they don't see the market for the 60 series x-fers, or if it's because another guy sells them.

10 also gives you the option of running a SM465.
 
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?
 
My computer was hi jacked, I will get Kyle to address the question.

Rob


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?
 

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