Transfer case Selection

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Jun 12, 2011
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Location
Stephenville Tx
Just bought a NV4500 to put in my 40, currently I have a 3 speed with 3 speed TC that are in good working order. I also have a 4 speed TC from a 78' in my shop that I was told was out of a good running 40. LC was torn down for a rebuild when the owner needed $ and parted out.

I need help with opinions in which TC to mate to the NV4500 (has the 6.3 granny low). I know the three speed TC has lower low range gears are there any other gains to either one.

Parts?
Noise?
Strength?
Ect.?

Thanks in advance for the knowledge and experience.

SBC 350 diff: 3.7 gears 33inBFG
Used mostly for a weekend cruiser, light offload.

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I would put a split case behind that and figure out a rear axle e-brake option.

:meh:
 
The '4 speed' t-case is slightly stronger than the '3 speed' and the gears are quieter and slightly stronger as well (they are wider). Run the 4Speed case for now and if you need something stronger later down the line, go for an Orion. That way you get a stronger case (cast iron), lower gears (3:1 or 4:1) and can retain the t-case mounted parking brake.
 
Just curious did you buy this one:
FS: Early NV4500 - Pirate4x4.Com
I'd go w/ the 16 spline '74-'80 4 speed case if you don't think you'd want an Orion. That way if you choose to go w/ an Orion down the road, AA has you covered. AA doesn't make a 19 spline spud shaft adaptor for the '80-'89 year split case.
 
AA doesn't make a 19 spline spud shaft adaptor for the '80-'89 year split case "to fit an Orion" :D

I have an Orion on my 1980... works quite well.
 
I have an Orion on my 1980... works quite well.

What month is your '80? This is taken directly from AA's site about the Orion:

<The Orion replaces stock transfer cases in Toyota Land Cruisers built between 1963 and July of 1980. Stock transfer cases built during this 18 year span are either a 10-spline case coupled with a 3-speed tranny or a 16-spline case coupled with a 4-speed tranny>
 
AA doesn't make a 19 spline spud shaft adaptor for the '80-'89 year split case




So to clarify, Advance Adapters does in fact make an adapter to put a split case behind this NV4500.



50-0214
 
Yes, it is true, Advance Adapters DOES NOT make an Orion transfer case to replace the 19 spline split case transfer case assemblies found in 08/80 and later 40/60/62 series Land Cruisers.
 
Thank you for the input I believe I will go with my 78' split case. And yes I bought the early NV4500 that was posted on MUD and looking forward to getting it in. Anything in particular that I should check out on the split-case before I run it?
 
Thank you for the input I believe I will go with my 78' split case. And yes I bought the early NV4500 that was posted on MUD and looking forward to getting it in. Anything in particular that I should check out on the split-case before I run it?

A '78 case is not a split case. It is a one-piece case. If you're going to run it replace all the seals and gaskets at a minimum. A rebuild with new bearings would be good piece of mind depending on the condition of the case.
 
I would suggest the split case as well. Strong, quiet and not difficult to rebuild or find. AA also offers 4:1 gears for them.

Great t-case!

Georg
 
Help!
I am planning on putting the 78' 4speed TC behind the nv4500 it has the ebrake cable attached.
1. Did the 78 have the under the dash brake handle or the floor. And is the floor will the 3speed cave swap over?
2. Will I need a longer cable and speedo cable?
 

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