Transfer case ???

Lunnzz · 12-07-2006, 07:27 PM

I am wanting to know if a transfer case off a V6 manual tranny will work on a 4 cylinder mamual tranny..??

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Mister Willie · 12-07-2006, 07:28 PM

im thinking not, but, thats a complete guess

runethechamp · 12-07-2006, 08:48 PM

Pretty sure there's a different spline count on the input shaft on the transfer case for those two. More info here:

http://www.4x4wire.com/toyota/faq/parts/

88yotasr5runner · 12-13-2006, 02:41 PM

i know there is an adapter to go from a v6 to a 4, but they are different because you cant put 4-1 or 7-1s in a v6 without the conversion because of a chain transfer case opposed to a gear case.

Ganoid · 12-14-2006, 04:29 AM

No it wont work.
More importantly WHY?
The 4cyl transfer case is much stronger and far more desirable than the V6 chain drive model.

Ganoid · 12-14-2006, 04:37 AM

Quote:

Originally Posted by 88yotasr5runner

i know there is an adapter to go from a v6 to a 4, but they are different because you cant put 4-1 or 7-1s in a v6 without the conversion because of a chain transfer case opposed to a gear case.

The V6 T-case has 0 gear change options.
As far as I know the only optional item for a V6 case is a twin stick ($200 from Marlin)
There was in the works a not so cost affective dual (4cyl+6cyl) case adapter but I don't think they have finished it yet (posted on the Marlin Boards).

The 4cyl T-case has quiet a few options as far as gearing but 4.7 to 1 is the most common (2.28 to 1 is stock).
You have Dual case adapters made for the 4cyl T-case.
You also have 21 and 23 spline gear sets and input shafts available.
There are a few makers of twin stick kits for the 4cyl case (Marlin,Skys,etc...)

toyota_mdt_tech · 12-14-2006, 08:38 AM

Quote:

Originally Posted by Lunnzz

I am wanting to know if a transfer case off a V6 manual tranny will work on a 4 cylinder mamual tranny..??

There is a VF1A that was used on the 3VZ and the 22RE, while the Rf1A?? was used only on the 22Re

tc · 12-14-2006, 06:58 PM

Quote:

Originally Posted by Ganoid

The 4cyl transfer case is much stronger and far more desirable than the V6 chain drive model.

I think that's debateable. Marlin indeed now has an adapter to put a crawl box in front of the chain drive case (MC10). Both Marlin and Inchworm have been doing it A LONG TIME with the chain drive Taco cases, holding up to WAY more power than a 22RE or 3VZE will EVER make.

Ganoid · 12-15-2006, 12:07 AM

Quote:

Originally Posted by tc

I think that's debateable. Marlin indeed now has an adapter to put a crawl box in front of the chain drive case (MC10). Both Marlin and Inchworm have been doing it A LONG TIME with the chain drive Taco cases, holding up to WAY more power than a 22RE or 3VZE will EVER make.

Looking throughout 4wd history gear driven T cases have always been stronger and more dependable than chain drive. If some one wants to make different ratios available for chain drive cases then I would say there could be some reason to consider chain cases.

I cannot find the chain drive dual adapter on marlins site (MC-10 as the R-10 is a 10* gear adapter). I can find the R+D thread started 2004 with the expected price of $649!! for a dual case adapter.

here is exactly what marlin has to say about the chain VS gear comparison.

# Benefits of a Gear Drive Transfercase: Multiple Housings
# Stronger Gears (no chain stretch)
# Stronger Bearings
# Stronger Case Design
# 21- or 23-spline Input Gear
# Unbreakable 23-spline input gear
# No Oil Pump Required
# Fewer Moving Parts
# Accepts Marlin Crawler Gears
# Accepts Marlin Crawler Dual Cases
# Can be located in most recycling yards

Benefits of a Chain Drive Transfercase:
# Shift into 4WD at speeds up to 50 miles per hour
# Weighs Less
# Lower Stock Low Range (2.57)

Marlins take on the chain VS gear

You can tout how much power a chain taco case can take but you put a 4.7 to 1 crawl box in front of it and now you have 22r or 3.0 power multiplied x4.7 and in this case I'm sure the chain case falls short.

avg 3.0 makes lets say conservatively 150 ft/lb of Tq? (rated at 180ft/lb's but most are old motors) and yes we are talking about crank HP we have no need for wheel hp on this topic
150x4.7=705 ft/lbs of Torque?
Now add the low range of the chain box as well since all gear reduction is done before the power is delivered through the chain to the front drive shaft.
705x2.57=1811 ft/lbs of Torque
Granted these numbers are absolutes but in the world of rock crawling and dual cases they usually deal in worst case situations due to lack of better judgment (AKA... Lead Foot syndrome)

so In response to "I think that's debateable." I would venture to say its not.

Edit... The only reason I can come up with for a taco chain drive case adapter is because of the drivers side T-case output where a gear drive case is not possible. If Toyota had offered a Gear drive case with a driver side output I'm sure there would be zero talk or use of a Taco Chain case used in any dual kits.

tc · 12-15-2006, 01:00 PM

Quote:

Originally Posted by Ganoid

I cannot find the chain drive dual adapter on marlins site (MC-10 as the R-10 is a 10* gear adapter). I can find the R+D thread started 2004 with the expected price of $649!! for a dual case adapter.

It's available, just not on their site yet. I have not heard what the official price is, (I believe it was around $549 though) and they are too hard to get ahold of for me to ask. (Seriously Marlin - your lack of customer contact is COSTING YOU SALES!!!) All their adapters cost about the same, but this saves me from having to buy TWO transfer cases. (Just need the crawlbox off of one case)

Quote:

Originally Posted by Ganoid

# Benefits of a Gear Drive Transfercase: Multiple Housings
# Stronger Gears (no chain stretch)
# Stronger Bearings
# Stronger Case Design
# 21- or 23-spline Input Gear
# Unbreakable 23-spline input gear
# No Oil Pump Required
# Fewer Moving Parts
# Accepts Marlin Crawler Gears
# Accepts Marlin Crawler Dual Cases
# Can be located in most recycling yards

huh? how are multiple housings an advantage?
OK
maybe, but doubt it's significant
maybe, but wonder how significant
chain drive is 23 spline behind a R series transmission
Same - 23 spline for R- series transmission
Already in there as it comes stock
I guess if you count each link in the chain a moving part
Duh - so they can make more money off ya
That wouldn't necessarily be true
So could chain drive with the right adapter - what's the point?

Quote:

Originally Posted by Ganoid

You can tout how much power a chain taco case can take but you put a 4.7 to 1 crawl box in front of it and now you have 22r or 3.0 power multiplied x4.7 and in this case I'm sure the chain case falls short.

avg 3.0 makes lets say conservatively 150 ft/lb of Tq? (rated at 180ft/lb's but most are old motors) and yes we are talking about crank HP we have no need for wheel hp on this topic
150x4.7=705 ft/lbs of Torque?
Now add the low range of the chain box as well since all gear reduction is done before the power is delivered through the chain to the front drive shaft.
705x2.57=1811 ft/lbs of Torque
Granted these numbers are absolutes but in the world of rock crawling and dual cases they usually deal in worst case situations due to lack of better judgment (AKA... Lead Foot syndrome)

I don't think I communicated the point effectively. People (lots of them - some even supercharged) are putting 4.7 gear drive crawl boxes in front of STOCK Taco chain drive cases. Your calculation is correct. The 5VZFE makes, what, 200 lb-ft? So, you've got
200x4.7x2.57 = 2416 ft-lbs!

12-07-2006, 08:48 PM	#3 (permalink)
runethechamp Registered User Join Date: Oct 2005 Location: Berkeley, CA Posts: 586	Pretty sure there's a different spline count on the input shaft on the transfer case for those two. More info here: http://www.4x4wire.com/toyota/faq/parts/ __________________ 94 4runner SR5, V6 3VZE, 5 speed Completely rebuilt engine with Toyota parts at 147k miles Downey Coils, Aisin manual hubs, Cowl Louver mod, Hella 500 fog lights Yeah, I know, not many cool mods here

12-14-2006, 04:29 AM	#5 (permalink)
Ganoid Registered User Join Date: Mar 2004 Location: Salem,Oregon Posts: 508	No it wont work. More importantly WHY? The 4cyl transfer case is much stronger and far more desirable than the V6 chain drive model. __________________ 1990 Xcab beast of burden 3.0 Rebuild/Precision balanced w/OS valves Custom ported/welded Intake manifolds Downey headers, Jacobs Ign 4" Trail Gear SAS + rear Kit R151 + Dual cases (2.28+4.7) 5.29's,Tru Trac/Lockright on 35 BFG's 140A GM CS144 alt/Hyd assist steering DOA Racing = $1200 lesson in who NOT to deal with

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12-07-2006, 07:28 PM	#2 (permalink)
Mister Willie Registered User Join Date: Oct 2006 Posts: 2,154	im thinking not, but, thats a complete guess

12-13-2006, 02:41 PM	#4 (permalink)
88yotasr5runner Registered User Join Date: Nov 2006 Posts: 24	i know there is an adapter to go from a v6 to a 4, but they are different because you cant put 4-1 or 7-1s in a v6 without the conversion because of a chain transfer case opposed to a gear case.