Topic: R150f and gear driven cases

[alwayzbroken]

I did a little reading and it looks like the v6 transmissions that came with chain drive cases will accept gear driven cases to be bolted up to them, is this true?

Also, how much stronger is an R150f over the W56D that I have in my 1992 truck now? I am looking to do an engine swap and will need a stronger tranny but I want to keep one or both of my geardriven transfer cases. Is a R150f up to the challenge of heavy abuse behind a Vortec 4.3?

Thanks

[79coyotefrg]

yea   the r150  will do the job  but  its a 23 spline

and what the heck are you gonna do for axles ??   rockwells

[alwayzbroken [OP]]

yea   the r150  will do the job  but  its a 23 spline

and what the heck are you gonna do for axles ??   rockwells

The toy axles will have to do for now.

So can I just get a 23 spline input then the gear driven cases will work? I would think so.

[79coyotefrg]

 

[alwayzbroken [OP]]

I'm not so sure now after seeing that Advance Adapters sells an adapter http://72.20.96.178/commerce/ccpc1094-1145-toyota-gear-drive-transfer-case-adapter-50-5707-50-5707.htm to mate the R150f to a gear driven case 

Can anybody tell me what this adapter is and if it is true that it is a bolt together swap for that tranny and a gear driven case once the input in the gear driven case in converted to 23 spline?

Also, what other parts are necessary to bolt the 4.3 to the R150f besides this A/A kit http://72.20.96.178/commerce/ccpc1266-1331-toyota-truck-r150-26-r151f-manual-transmission-ada-712561-712561.htm ? Do you need to buy all the other parts seperately or are they in the kit? I am sure which ever is most expensive is gonna be the way it must go.

[Goose]

Im also interested in this, cause i got a v6 =/
Marlin sells pretty much that same adapter right?
Itd be killer to have my rebuilt v6 tranny with 2 23 spline cases behind it

U-joints? Axles? pffft. we dont need those anyways  8)

[alwayzbroken [OP]]

It looks like an adapter is necessary. I guess a TH350 of TH400 will have to do 

[BLACKDOG]

It looks like an adapter is necessary. I guess a TH350 of TH400 will have to do 

why not buy the adapter?  It's only about an inch thick, if that? 

[alwayzbroken [OP]]

why not buy the adapter?  It's only about an inch thick, if that? 

Because I will have over a thousand dollars in adaptor hardware at that point, when I could just buy a t-case adapter for a GM tranny and only spend 400$.

[BigMike]

What year R150F are you talking about? If you want to run the chain drive t/case, then I strongly recommend using the 1995.5-2005 style T100/Tacoma/Tundra transfer case. It has a stronger chain and the inputs seem to hold up to more abuse as well.

We have an adapter to put a gear drive t/case behind a R150F transmission, and we also have an adapter to put a gear drive reduction housing in front of both a 1988-1995.4 V6 Chain drive t/case or a 1995.5-2005 V6 Chain drive t/case.

The choice is yours.

and what the heck are you gonna do for axles ??   rockwells

What? He is only running a 4.3l V6 engine, not a Supercharged big block!

The R transmission is 50% stronger than a W transmission, based on figures that Marlin has as guestimations. We have never actually tested the maximum loading ability of a transmission.

But consider that Super owners running Turbo 7M-GTE's run 400+ HP through their R154 transmission and it stands up to it, and the 3.4L V6 Tundra uses the R150F transmission and was rated at 5,250 trailer and 9,500 GCWR towing ratings, considering Toyota allows a TRD Supercharger as a factory option, they must feel pretty good about the R-series transmission.

Remember the R-series transmission has been used in trucks for about 20? years (1986-2005?) that's pretty impressive.

[Ferg]

I run a 4.3 and a W56.  Have been for about eight years now with no - ZERO problems.  Don't drive like a fool and the combo will hold up.  I've taken mine through the 'Con and Fordyce.  I run 35" BFG's with 4.10s.

Drive safe and have fun.

[NewbCrawler]

We have an adapter to put a gear drive t/case behind a R150F transmission, and we also have an adapter to put a gear drive reduction housing in front of both a 1988-1995.4 V6 Chain drive t/case or a 1995.5-2005 V6 Chain drive t/case.

Are these still being produced? I am wanting to setup a dual case in the 1988 4runner 3.0l sr5 5speed to a 1986 4runner 22re 5 speed transfer case to chain driven t-case out of the 1988 4runner 3.0l.

[Snowtoy]

You will need a V6 trans to 4cyl. transfercase adapter, and a dual transfercase adapter, and both of the 4 cyl transfer cases will need to be upgraded to 23 spline cases, unless you find two t-cases from 22re turbo 5speeds.

Marlin used to make dual t-case adapter for the chain driven t-cases, but I don't see it listed, not sure if they are available from another supplier or not.

[zidaro]

https://www.marlincrawler.com/transfer-case/built-units/tacoma-1st-gen/dual-case-unit
I think they only sell the Tacobox as a complete unit now.   includes the built reduction unit with the Trans adapter on the front, Chain drive adapter on rear.  RTR

Sadly, nothing is in stock.  A phone call MAY help, but i had no luck regarding a R150 3.0V6 to chain case adapter, not avail. and no real timeframe just estimates. 
Need to move forward so......  Finally stooped to my low and bought a Trail Gear Adapter     
ECGS had the best price and shipped same day. https://eastcoastgearsupply.com/i-135580-toyota-v6-transfer-case-adapter.html

Been a dedicated Marlin Follower/customer for Decades.  But..... customers need to be able to purchase items in realistic timeframes.  No product for MONTHS???

Now if we can only make some of those R150 short throw shifters and get them in stock 

[CrazyYota]

[quote author=zidaro link=topic=34049.msg1155246#msg1155246 date=152943329

Been a dedicated Marlin Follower/customer for Decades.  But..... customers need to be able to purchase items in realistic timeframes.  No product for MONTHS???

Now if we can only make some of those R150 short throw shifters and get them in stock 
[/quote]

Reason why I ended up using inchworns r150 adapter and dual dual case adapter.

[Pappy]

But..... customers need to be able to purchase items in realistic timeframes.  No product for MONTHS???

This.