1.2 or 1.4 Transfer Case? - Defender Source
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  #1  
Old September 16th, 2013, 04:28 PM
UtahD90
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Adam Harward
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1.2 or 1.4 Transfer Case?

Converting my NAS D90 SW to diesel:

Motor: 300TDI
Transfer Case: 1.2 or 1.4 is the question
Diffs: 4.11
Tire Size: 35

What do you guys think? Anyone who's run this set up and has experience I would love to hear. Live in Utah so I will be in the Mountains but don't generally pull anything with my defender and I would say is loaded down (average) Not super heavy.
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  #2  
Old September 16th, 2013, 04:56 PM
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mark kellgren
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I personally can't imagine why a D90 would ever need a 1.4 unless it was just a trail rig, but I don't have a D90, so will defer to others.
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Old September 16th, 2013, 05:01 PM
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Robert Davis
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Quote:
Originally Posted by UtahD90 View Post
Converting my NAS D90 SW to diesel:

Motor: 300TDI
Transfer Case: 1.2 or 1.4 is the question
Diffs: 4.11
Tire Size: 35

What do you guys think? Anyone who's run this set up and has experience I would love to hear. Live in Utah so I will be in the Mountains but don't generally pull anything with my defender and I would say is loaded down (average) Not super heavy.
With 35s a 1.4 would be better at pulling hills and off-roading.
The 1.2 would be OK on the flat with a SWB going down a highway.
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  #4  
Old September 16th, 2013, 05:15 PM
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Adam Harward
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Is that with stock diffs? I've got 4.11's in my diffs
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  #5  
Old September 16th, 2013, 05:20 PM
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Jason Lavender
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1.4 vs 1.2 tcase...nothing changes in the "lower" gears (i.e. low vs high). So throw out any considerations that'll make it a better or worse "trail rig" offroad. Only consider highway rpms based on the Tdi you're throwing in.
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  #6  
Old September 16th, 2013, 05:23 PM
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John B.
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1.2 is a good choice with that gearing, especially with a light power tune.
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  #7  
Old September 16th, 2013, 08:32 PM
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mine pulls fine with the 3.9 and 255's maybe you all need to spit out the diesel kool-aid and get V8's
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Old September 16th, 2013, 08:40 PM
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Jeff B
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Quote:
Originally Posted by rover4x4 View Post
mine pulls fine with the 3.9 and 255's maybe you all need to spit out the diesel kool-aid and get V8's


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  #9  
Old September 16th, 2013, 08:42 PM
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I have the same exact setup.


300tdi
35" tires
1.4 t case
4.11 gears

It's perfect


I have built trucks with the 1.2 combined with the 300 and it sux on any hill when you start off. It's good on a strait flat highway but that's about it.


I found that the perfect combo is that I have with the overdrive setup as well. It gives you the best of both world and just a bout as perfect as you can get.
I also upgraded my Intercooler which helps a ton.. If interested in overdrives, turbo kits or intercoolers for diesels, shoot me a pm

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  #10  
Old September 17th, 2013, 12:27 PM
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Adam Harward
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Thanks for all the comments. I appreciate your input
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