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Thinking about a dual T case.. i need some advise

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Old Jan 7, 2010 | 09:25 AM
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eastsideyota's Avatar
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From: issaquah washington
Thinking about a dual T case.. i need some advise

just thinking about a dual transfer case, dont really know much about them, any thoughts?
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Old Jan 7, 2010 | 09:38 AM
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why do you want one is the big question...it is not cheap
-new crossmember, a donor top shift gear driven transfer case (or convert a gear driven forward shift to TS) front and rear driveshaft work...a tacoma adapter, cut a hole in the tunnel

auto or stick?

since your tacoma is a left side drop (the front DS is on the Driverside) you will need to take a look at:
http://www.marlincrawler.com/transfe...-transfer-case
or
http://www.inchwormgear.com/store/in...cPath=21_89_93

found this on another forum:

Originally Posted by jtaco1
Check the Marlin site, they sell the adapters seperate. The adapters are all teh same between the Tacoma t-cases and tranny fo rthe most part, the difference is the coupler that is used.

Here's what you need:

Crawl Box to Stock Transfer Case Adapter

MC-14120, MC09 Dual adapter Kit $649

Transmission to Gear Drive T/case Adapters

MC-14121, Model# 27-4GT 2.7L 4Cyl / 5-Speed, $349

Top shift t-case

Drive shaft mods and crossmember .
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Old Jan 7, 2010 | 11:48 AM
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This is a big time mod - second only (IMHO) to a SAS in terms of work, expense, and the impact on the normal function of the vehicle. If you don't know that you need one, you probably don't.

The gear driven cases are remarkably louder than the chain drive, and having all the extra lash in the system is noticeable. Your driveline angles need to be PERFECT or you will hear it in the cases.
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Old Jan 7, 2010 | 05:30 PM
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From: GrangeVille, Idaho
Originally Posted by tc
This is a big time mod - second only (IMHO) to a SAS in terms of work, expense, and the impact on the normal function of the vehicle. If you don't know that you need one, you probably don't.

The gear driven cases are remarkably louder than the chain drive, and having all the extra lash in the system is noticeable. Your driveline angles need to be PERFECT or you will hear it in the cases.
What do you mean by "the impact on the normal function of the vehicle ?", there is no impact on the normal every day use or function of a vehicle with duel cases. .
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Old Jan 7, 2010 | 05:35 PM
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It's still drivable on the road, of course, but the NVH and maintenance demands are considerably different than stock.
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Old Jan 7, 2010 | 05:47 PM
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Originally Posted by tc
It's still drivable on the road, of course, but the NVH and maintenance demands are considerably different than stock.
What is NVH ?. As far as maintenance demands, its not any more different than stock. The only extra cost is the extra gear oil needed when you do your regular maintenance. You can drive your truck/4Runner on the street with duel cases just like it was stock, you won`t notice anything diferent.
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Old Jan 7, 2010 | 06:26 PM
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Originally Posted by myyota
What is NVH ?. As far as maintenance demands, its not any more different than stock. The only extra cost is the extra gear oil needed when you do your regular maintenance. You can drive your truck/4Runner on the street with duel cases just like it was stock, you won`t notice anything diferent.
I have no idea what NVH is either and I don't notice any difference in the performance of my truck with duals and I drive mine every day, no noise, no vibrations, no slack, nothing.

To the O.P. that question/request is very vague what exactly do you want to know about them. Why are you thinking about one? What advise are you looking for?

Oh, and putting duals together is not hard at all.
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Old Jan 7, 2010 | 07:33 PM
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Noise/vibration/???(harshness...lol its something like that, its a dealership term.

To the OP, what kind of wheeling do you do, and do you do it often?? These are the questions you need to be asking!

In the near future, I will be doing this to my truck, but mine is pretty much trail only, its still street legal, and will be driven on the street, just not as much. You have to decide if its worth it for you...its not one of those mods that you do just to do, you are looking close to 1-2k in parts alone, cause yours is a tacoma!
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Old Jan 7, 2010 | 07:47 PM
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From: issaquah washington
hey thanks for all of the advise!

from hearing what a big project it is i think i am going to steer clear of it for a while, i had no clue of how spendy it was.. i go up to the mountains every weekend when i don't work but i also drive it to school 5 days a week so i dont want to do anything that would jeopardize the every day driver part of the truck.

thinking just going for a set of 5.29 Yukon's for the time being
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Old Jan 7, 2010 | 08:49 PM
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NVH = Noise Vibration Harshness - it's an engineering term for the study of how a car "sounds"

Glad y'all's is working for you better than mine.
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