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  #1  
Old September 2nd, 2010, 09:56 PM
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Roger Ramjet
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transfer case

The LT230r transfer case is going. What is the best replacement way to go. The R transfer case is one of the older ones and parts aren't so readily available.
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  #2  
Old September 3rd, 2010, 01:06 PM
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Mike Hammond
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Just get an LT230t it's a direct swap with better bearings and bigger cogs - bit stronger.
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  #3  
Old September 3rd, 2010, 10:52 PM
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Robert Klima
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1:1 was used on early Range Rovers only. It's an '85 D90 so it either has an 1.6 or an 1.4 (more likely)
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  #4  
Old September 4th, 2010, 03:50 AM
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Quote:
Originally Posted by berti1554 View Post
1:1 was used on early Range Rovers only. It's an '85 D90 so it either has an 1.6 or an 1.4 (more likely)
I'm pretty certain all 90's came with a 1.4.
If you're running standardish size wheels a 1.22:1 transfer box from a discovery is a good upgrade.
There's a huge thread on the subject running o the site.
http://www.defendersource.com/forum/...ad.php?t=15544
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  #5  
Old September 4th, 2010, 08:41 PM
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Quote:
Originally Posted by mikeslandrover View Post
I'm pretty certain all 90's came with a 1.4.
If you're running standardish size wheels a 1.22:1 transfer box from a discovery is a good upgrade.
There's a huge thread on the subject running o the site.
http://www.defendersource.com/forum/...ad.php?t=15544
That would depend on what engine the 90 has.... What engine? What gearbox?
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  #6  
Old September 4th, 2010, 11:16 PM
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No, Mike is right. It has an LT230 and is my '85 so it has the LT77 trans. Transfer box ratio is 1.4; 1.6 was used on 110's only
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  #7  
Old September 5th, 2010, 03:14 AM
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I meant....whether or not a 1.2 swap is a good idea or not depends on what engine it has..... Also it is good to know what gearbox. When new it could have had an LT95 or LT77, but through the years could have have anything put in there...
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  #8  
Old September 5th, 2010, 07:17 AM
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Quote:
Originally Posted by Red90 View Post
I meant....whether or not a 1.2 swap is a good idea or not depends on what engine it has..... Also it is good to know what gearbox. When new it could have had an LT95 or LT77, but through the years could have have anything put in there...
The transfer box is integral on an LT95.


Quote:
Originally Posted by berti1554 View Post
No, Mike is right. It has an LT230 and is my '85 so it has the LT77 trans. Transfer box ratio is 1.4; 1.6 was used on 110's only
Only the 2.25 petrol 110's got a 1.6:1 transfer box because they had trouble moving under their own power but used a whole lot of fuel going nowhere fast. I know, I had one, It got a 200tdi transplant and a 1.4:1 transfer box within a month of ownership.
Then I bought a 90 2.25 petrol same problems( slow and thirsty) but a 1.4:1 transfer box as standard, that too got a 200 tdi and eventually both got 1.22:1 ratio transfer boxes, they're ten a penny over here.


Quote:
Originally Posted by mikeslandrover View Post
Just get an LT230t it's a direct swap with better bearings and bigger cogs - bit stronger.
By bigger cogs I meant that the cogs are wider, don't think the intermediate gears are swappable between an LT230t and an LT230r. The LT 230t is slightly stronger, saying that I've killed 2 One when the traper bearings came loose because the crush distance piece failed, ( rebuilt and still fine )the other I'm not too sure about but gear teeth came out with the oil
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  #9  
Old September 5th, 2010, 09:16 AM
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Quote:
Originally Posted by mikeslandrover View Post
Only the 2.25 petrol 110's got a 1.6:1 transfer box because they had trouble moving under their own power but used a whole lot of fuel going nowhere fast.
All non-V8 pre-TD 110s had 1.6s. 2.25P, 2.5P, 2.5D.....

The OP needs to let us know the rest of the drivetrain...
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  #10  
Old September 5th, 2010, 03:33 PM
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Roger Ramjet
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I have a 2.5 non turbo diesel.
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  #11  
Old September 5th, 2010, 06:11 PM
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Then stay with the 1.4.
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  #12  
Old September 6th, 2010, 05:04 PM
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Roger Ramjet
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Red90,

so what is the correct replacement transfer case? a T?
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  #13  
Old September 6th, 2010, 05:45 PM
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Quote:
Originally Posted by grbec22 View Post
Red90,

so what is the correct replacement transfer case? a T?
It doesn't really matter, the t is probably stronger, it's the ratio that needs to be right.
The ratio is shown by a sticker near the fill/level plug (if it hasn't come off).
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