R151F-1HZ 4.2L LC BJ60 - 'HZJ60' -> Dual TC

[lloyd_bullet]

 

        hi all & Marlin and team,


                  Greetings from Malaysia. I've tried writing thru email regarding my 1989 Land Cruiser BJ60 which now runs a 1HZ-R151F engine-transmission combo- donor vehicle is a 2001 Land Cruiser HZJ79 Pick-Up but did not get much information.

         I'm really keen to install Marlin's dual transfer case with the 4.70:1 gears. However, there are few important questions (confusion) to clarify prior to confirming an order with Marlin Crawler.


        Questions:


  1) How different (& similar) are the 86-87 turbo 4-Runner R151Fs from the 2001 Land Cruiser HZJ79 Pick-Up's R151Fs? 

  2) Will the single or dual transfer case (4.70:1) from Marlin suit the HZJ79's transfer case?

  3) What's the spline count of the output shaft on HZJ79's R151F transfer case?

  4) Is HZJ79's transfer case considered a 'split-style' transfer case?

  5) Stock low ratio on HZJ79's transfer case is 2.295:1, is this identical to U.S. R151F turbo trucks?

  6) Are ratios on U.S. R151F turbo trucks different than non-USA R151F such as HZJ79?

  7) On Marlin's website, "to I.D. a gear-driven TC, just count the bolts- 5 is chain driven & 7 is gear driven". I counted mine & it has 6 bolts!!! So is this a chain or gear-driven transfer case?

  8) What is the deepest gear available in a low range transfer case available at Marlins' for the R151F?


   I hope Marlin himself or some expert can help with the questions I've asked so far. Been waiting to get answers for nearly a year on them now.

  Just discovered this forum so hoping its the right place for those questions.


    Looking forward to answers and suggestions.


           Thank You all & best regards   
   
 



   
   

[crawlerdan]

pictures of the tranny an t-case would probably help-throw some pics of the truck in too!!

[lloyd_bullet]

   yup I'll surely do that once I learn how to put the pictures in...

[Shamb]

i'd definently post up some pictures!

[hudlenutz]

I'll have to get back to some of the 'Aussie boards to verify this, but I'm pretty sure the landcruiser R151 shares the same output as the US R150F 5spd that comes behind the v6.  In which case, you could just shop Marlin's site like you have a R150F.  To run dual gear driven cases, you'd need the V6 adapter plate, and the dual ultimate.   But... you might want to hear from Marlin before you go spending your money.  Pictures would help out with identifying everything.  How do you like the turbo diesel?

HF1A or HF2A ring any bells for anyone?  not sure if these are 'split style'...

[hudlenutz]

Is your cruiser full or part-time 4wd?

[lloyd_bullet]

  sorry for the late reply. been on the IH8MuD forums lately.


  its a part-time. Engine & Transmission straight out of a HZJ79 Land Cruiser pickup.


  HZJ79 has a 1UZ-FE & an A341E , will be blown by an Opcon MX420 sometime next year once i got all my stuff from Forced Air Technology of Sydney, Australia.


   The turbo-diesel is great for off-road as it pulls like a tractor up most inclines except i need deeper gears in the low range..Marlin is not helpful in that they are reluctant to deal with faraway customers.


At least you seem to know something!!!! Thanks man   


  Why isn't the R151F identical to US R151F? Why did u mention it being similar or same as R150F?? 


   If you can guide me, i might just ask Marlin to send over the dual ultimate & skip the questions & enquiries...


   My transfer case is gear-driven...Marlin says 7 bolts represents gear-driven , mine counts to six..!!!


need to post pictures here so y'all can judge & advise better...problem is i haven't learn how to yet...

[hudlenutz]

You can email me your pictures, and I'll post 'em up.  Just click the little envelope under my screen name and attach them.  Otherwise, you just hit the 'additional options' button and attach them to your post.

I'm still looking, so give me a few more days on this one.  I know I've run across this information before...

[hudlenutz]

Verified on another site that the tranny is a R151F:
http://www.birfield.com/modules.php?name=TLCFAQ&p=/~ramullen/FAQ/TEXT/08-01.html

An alternative to the MC adapter from a company in Australia...
http://www.marks4wd.com/Cruiser-Crawler.htm

What transfer case you have can be identified by the location of the rear output from your transfer case. If it's centered, you have the hilux case.  If it's offset, you have the 'split' style Landcruiser case.  It seems most likely that you have the land cruiser split case considering the donor. 

You can sort through some of the info here:
http://forum.ih8mud.com/archive/index.php/t-24552.html

Sooo.... to answer your questions.

1) How different (& similar) are the 86-87 turbo 4-Runner R151Fs from the 2001 Land Cruiser HZJ79 Pick-Up's R151Fs?

They are basically the same, but came with different transfer cases.

2) Will the single or dual transfer case (4.70:1) from Marlin suit the HZJ79's transfer case?

In a word, no.

) What's the spline count of the output shaft on HZJ79's R151F transfer case?

not sure on that one...

4) Is HZJ79's transfer case considered a 'split-style' transfer case?

Yes

5) Stock low ratio on HZJ79's transfer case is 2.295:1, is this identical to U.S. R151F turbo trucks?

I think it's pretty much the same, yeah (2.28 ish)

6) Are ratios on U.S. R151F turbo trucks different than non-USA R151F such as HZJ79?

US: 1st-4.31 2nd-2.74 3rd-1.93 4th-1.00 5th-0.83 R-4.23
Yours: 1st-4.31 2nd-2.33 3rd-1.44 4th-1.00 5th-0.84 R-4.22
...approximately

7) On Marlin's website, "to I.D. a gear-driven TC, just count the bolts- 5 is chain driven & 7 is gear driven". I counted mine & it has 6 bolts!!! So is this a chain or gear-driven transfer case?

If you do really have the split case, this discrepancy is not surprising.  The cruiser case is still gear driven, however.

What is the deepest gear available in a low range transfer case available at Marlins' for the R151F?

4.7  I think someone makes a 5.0, but it's rumored to be weaker.

So what you'd need to do is get two 23 spline transfer cases identical to the us cases behind the R151F.  You can probably find these where you are, just look for the centered t-case output.  One case would be made into a 'crawl box', and the other would attach to the back.  You could order a dual ultimate from marlin, just like you would for a US R151F.  This may present a problem, however, if you're running an offset diff'd rear axle.  You would want to figure out if it caused problems, or convert to an axle with a centered diff.

So, that's all I got.  I hope it's right,  .  Get those pictures coming

[lloyd_bullet]

  wow! thats plenty information! I've just checked the forum after 10 days so will have a better read of the info you've provided later this evening.

   On the pictures, let me try sending them to your email first & see what happens..


   i gotta rush off to work now, so thanks in advance & i shall reply soon  

[lloyd_bullet]

  i will send the pictures tomorrow as i got them saved in my pc at the office.

I'll also try to send you pictures of the donor truck & its V8 engine (Lexus 1UZ-FE)- formerly HZJ79 , now 'UZJ79'


  your idea of getting a dual ultimate is also a good one, my rear axles are stock BJ60 units with the 4.111 R&P ratio.


   Thanks again & kind regards   

[lloyd_bullet]

  hey Mr Hudlenutz,

    i've emailed the pictures to you...could u help me post 'em ...Thanks!!

[hudlenutz]

Here they are:

[hudlenutz]

A couple more...

[hudlenutz]

Looks like your rear axle has the off-centered differential.  To use a marlin t-case setup, you will definitely want to swap the rear axle to a centered differential, or just rebuild the current case with low gears from the other company, and keep your axle (definitely not a cool as a dual case setup, but easier, and probably cheaper). 

That pickup is sweet.  I wish they made those here .  Nice rigs

You could spring-over the BJ and bump up to bigger meats, without too much trouble. 

[hudlenutz]

Here's the only picture I could find of my buddy's FJ-60 Landcruiser.  The body looks similar to yours.  It goes just about anywhere around here with 35s.  My truck is the white one in the middle, and the 4runner belongs to another friend.

[lloyd_bullet]

   hi there!  thanks for putting the pictures up   


   my canon digital camera is broken, will fix it  then snap better angles of both trucks.


    UZJ79 is source of engine  &  transmission found  on 'HZJ60'

    UZJ79 is a Lexus 4.0L V8 with a reinforced A341E 4-Speed automatic transmission. (will be supercharged hopefully by mid-january, Opcon Supercharger MX420)


       many thanks again for helping put up the pictures.         8)


    however, does this  mean I can't run a dual-ultimate TC from Marlin???       


     my immediate goal for HZJ60 is to achieve deeper gearing in low range then solve  ground clearance issues thereafter..


     


   

     
   

[4THEWKN]

The Lowest gear for the  R151-R150 trans is either a 4.30  (Stock Turbo R151 trans) or a 5.15 from a Hino truck. We have no clue as to what the trans from the HZJ79 looks like.    Much less ever seen one in person.  Heck if you what us to figure it out ship us a truck and we will see what we can do. Be sure to put attention "DEAN" on it... sorry we couldn't help..........   Dean

[lloyd_bullet]

   hi Dean,

     are u one of Marlin's staff? no worries, i'll get a good shot at the HZJ79's transmission (R151F)  and transfer case. Most mechanics both local & Australia tell me R151F are likely to be the same as it is known as a 'hilux' transmission albeit a less 'heavy-duty' version to the Land Cruiser's traditional transmissions like the H55F, H151F & H150F...


     Reason Toyota put a R151F in the HZJ79 is that they figured the Malaysian market didn't need a heavier duty transmission and also to reduce production costs.


    The Land Cruiser pickup you see in the picture no longer runs a 1HZ-R151F as this combo now resides in the BJ60.


    Do you think if i gave you a better view of the R151F that i'm running now, you'd be able to tell me whether or not i could use your dual ultimate TC and bear in mind my rear axle on BJ60 is not centered...



    From the pictures, could u tell what type of transfer case it is?? would it fit Marlin's dual TC???

    Appreciate any advice/suggestions... 8)



      thanks & kind regards

[Chuck78]

I stumbled upon this old thread when searching for some R151F Land Cruiser specific split case transfer case info.

This is a very old thread but I didn't want anyone else stumbling upon this and ending with a lot of confusion after reading the entire thing...

The R151F that has come in Land cruisers in the late 1980s and early 1990s for the older version, and 1999 and newer up to at least 2023 for the current versions, is very much different in the rear section than the US market turbo pickup trucks '86-'87 22 RTE versions.  The rear housing which some people call the transfer case adapter section is entirely different. Marlin crawler at one point was making what they called the Toy Box which was a dual case that had this transfer case pattern and would go in between the split case and the R151F, but they no longer make that. The 4 cylinder gear drive pickup truck transfer cases will not work on this whatsoever unless one where to get an early version from an early 1990s Land Cruiser and swap out all of the rear housing parts to the r151f pickup truck housing or else the 3vze 3.0 L V6 rear housing and use an adapter. I believe around February of 1994, the short input shaft older version transmissions were actually the later versions found with the 3.4 v6, but still retained the shorter input shaft until the Tacoma introduction and the end of the US-market Hilux-based "pickup" (or "4Runner Truck" as some parts fiches call it), and still retained the same tail housing section although perhaps modified due to internal differences with fifth gear etc.  there is some point after 1996, perhaps 2005 or even 2015 or so where the rear housings will not swap because of different shift fork / synchronizer setups etc.

The 2005-2017 R155/R156 input shaft is actually the same part number as the 2/1994-11/1995 R150F input shaft due to these major internal design changes.  The helix angle on the input gear teeth was revised in early 1994, this is why the 1986- 1993 and January 1994 short input shafts are no longer available but the end of that era still were.


Back on topic, you can get 4.1:1 Land Cruiser splitcase transfer case gears from Cruiser Outfitters and perhaps Marlin and others.  There are I believe three different versions of the split case, the oldest will have a 34mm intermediate shaft I believe, we're both of the later versions will have a 38mm shaft. The inputs come in two different sizes as well depending on if they were in a 70 series or an 80 series from what I gather. You'll have to research this further. 

For a dual case setup, the current offerings that I see available are a planetary gear dual case setup from Northwest Fab Works that fits this transfer case pattern. There are several different styles of that depending on what the case came out of.

[helipilot77]

I can confirm that the latter model R-151 transmissions that came behind deisel equiped vehicles in markets outside of the US had a chain driven transfer case behind them rather than a gear driven transfer case. So the output bolt pattern would be different than the 1986-87 turbo truck R-151 transmission that had a gear driven transfer case. hope this helps, although it is not what you were hoping to hear.