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22 mpg or bust.... and reliable. Engine swap discussion thread.

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Old Aug 26, 2018 | 10:45 PM
  #41  
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Originally Posted by Alex_M

Thought?
You’ll probably have to hack up the floor pan, look at the room between the tub and the brake drum. T56 gear ratios are horrible for a truck. Youll have to cut and turn knuckles and suspension brackets on both axles to keep it from shaking itself apart at road speeds.

And it’ll definitely need ujoints on the intermediate shaft if its divorced.
 
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Old Aug 26, 2018 | 11:42 PM
  #42  
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https://www.youtube.com/user/burning...nfury/featured

This guy?



Originally Posted by The Deputy
Don't take this wrong, and this is not directed at Alex...but it's funny what folks deem important...nowadays.

Was visiting with my folks last night (86 and 84 yrs old) and we were talking about the trip we took out west in 65. Three weeks, few miles short of 7000...dad was laid off, no A/C, four kids in the back (none wearing seatbelts), no cell phone, no healthcare coverage, no AAA towing service, no tools, no credit card, no Yeti (Styrofoam cooler, believe that) and no worries...and get this...we lived.

Sorry for the sidetrack. But the airbag thingy got me thinking about the days before such things. Okay, this old man is done reminiscing...lol.

Back on topic...

There's a guy here in Michigan that's putting a cummins in his Dll...can hook you up with his contact info...if you happen to change gears about the build. Not sure how he's coming along, been a bit since I had any correspondence.

​​​​​​​ Brian.
 
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Old Aug 27, 2018 | 06:22 AM
  #43  
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Originally Posted by robertf


You’ll probably have to hack up the floor pan, look at the room between the tub and the brake drum. T56 gear ratios are horrible for a truck. Youll have to cut and turn knuckles and suspension brackets on both axles to keep it from shaking itself apart at road speeds.

And it’ll definitely need ujoints on the intermediate shaft if its divorced.
Sorry, I don't understand what you mean about the knuckles. Could you elaborate?

I totally forgot about the e-brake drum, but that could actually work in my favor. I could, in theory, just remove the drum. Then I could convert the e-brake to hydro to lock the rear wheels. That would give me another 5 inches or so to play with.
 
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Old Aug 27, 2018 | 06:23 AM
  #44  
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I just watched his divorced transfer case video. It got some wheels turning.

Originally Posted by Saturnine
 
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Old Aug 27, 2018 | 06:40 AM
  #45  
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Also, the gear ratios in a t56 are very similar to those in the factory ZF. It starts lower actually. First gear in the ZF is 2.48, and first in the t56 is 2.95/2.97/3.37 depending on the specific trans you pick up.
 
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Old Aug 27, 2018 | 06:55 AM
  #46  
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OOOOOOKAY... I think I mightve found a transmission. That was an unexpected turn.

It's from a CT Corvette. It has 95k miles. Looks like the extension housing is off.

I need to disassemble the extra lt230 I have to look at the input. Can anyone give any.... Input? I'm looking whether it would be easiest to:

-gave a custom output shaft machined for the try (doubt it)
-have a custom input machined for the lt230 (I like the sound of it)
-have an adapter machined.
-have the stock input of the lt230 machined to accept the try output (if the ID is smaller than OD of the output)
-inversely have the stock output machined to mate to the input of the LT230

Either way the trans will get a custom extension housing so that it can bolt directly to the LT230, not divorced.

This is still hypothetical. I haven't pulled my finger on the trans yet.
 
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Old Aug 27, 2018 | 07:02 AM
  #47  
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Originally Posted by Alex_M
Also, the gear ratios in a t56 are very similar to those in the factory ZF. It starts lower actually. First gear in the ZF is 2.48, and first in the t56 is 2.95/2.97/3.37 depending on the specific trans you pick up.
that has a torque converter, not comparable. Look at r380 ratios

Knuckles... you move the transfercase back and your pinions dont line up. You rotate the axle and the steering wont center.

 
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Old Aug 28, 2018 | 12:23 AM
  #48  
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Originally Posted by robertf


that has a torque converter, not comparable. Look at r380 ratios

Knuckles... you move the transfercase back and your pinions dont line up. You rotate the axle and the steering wont center.

First gear in an r380 is 3.65, so not too far off actually. A little lower, but the LS also makes more torque at a lower RPM than the Rover V8. It still isn't likely to be fast, but I believe it should be plenty livable I think.

I understand what you're saying now. The pinion and output shafts actually don't need to be pointing at each other. As long as they're withing Roughly 3 degrees of each other's angle at pretty much all times then they'll be fine. In this case that would be parallel to the ground, which they already are pretty close to that stock.
 
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Old Aug 28, 2018 | 10:28 AM
  #49  
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Originally Posted by Alex_M
I understand what you're saying now. The pinion and output shafts actually don't need to be pointing at each other. As long as they're withing Roughly 3 degrees of each other's angle at pretty much all times then they'll be fine. In this case that would be parallel to the ground, which they already are pretty close to that stock.
the front is a double cardan, it points at the front output, not parallel.
 
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Old Aug 28, 2018 | 02:39 PM
  #50  
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To OP,

what about
>Ford plant like duratorq
>getrag MT82
>LT230 adapter
>LT230
>DC shafts




Final production setup for the defender was the ford Tdci and MT82, what is nice is they already make the adapter for the MT82 output to LT230 input, ashcroft even makes an improved version. MT82 would also be able to mate to a variety of motors, like the ecoboost also?

One issue however is prop shaft lengths and the LT230 is angled to mate correctly with the getrag trans, so double cardan shafts a plus.
 
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