Best donor 90 to do a diesel conv.? - Defender Source
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  #1  
Old October 20th, 2005, 10:20 PM
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Kevin Collins
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Best donor 90 to do a diesel conv.?

So I'm shopping finally for a replacement 90 (now after 3 years of being 90-less and having to rough-it with Rangies)

I'd like to do either a 300Tdi or 2.8 swap into the new 90 eventually (preferably sooner rather than later) and was wondering what would make the best donor...

A 3.9/LT77 or R380 model or a 4.0/ZF model or does it make any difference at all. I have no preference as to whether the transmission is a manual or auto now or later.

Thanks, Kevin
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  #2  
Old October 20th, 2005, 11:57 PM
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David Shechter
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I was in your same situation and bought a 97 because of the ZF. As a daily driver the ZF is a stronger tranny for the 2.8, plus with such a torque engine you end up going through the gears in a manual so quickly before you get up to a driving speed. The resale on a 4.0 is better than that of a 3.9. I know good ole buck will disagree, ain't that right buck.
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  #3  
Old October 21st, 2005, 07:28 AM
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Randy
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I agree... through the gears in seconds...lol
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  #4  
Old October 21st, 2005, 10:57 AM
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Quote:
Originally Posted by sheki
I was in your same situation and bought a 97 because of the ZF. As a daily driver the ZF is a stronger tranny for the 2.8, plus with such a torque engine you end up going through the gears in a manual so quickly before you get up to a driving speed. The resale on a 4.0 is better than that of a 3.9. I know good ole buck will disagree, ain't that right buck.
What am I not supposed to agree with? I don't agree that I am not supposed to agree.
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  #5  
Old October 21st, 2005, 10:08 PM
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David Shechter
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Well, I guess there is a first for everything.
I know your feeling on autos, "they are for girls and the handicapped". So I assumed you would be all for recommending a manual tranny.
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  #6  
Old October 21st, 2005, 10:29 PM
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Quote:
Originally Posted by sheki
Well, I guess there is a first for everything.
I know your feeling on autos, "they are for girls and the handicapped". So I assumed you would be all for recommending a manual tranny.
How could I? Maybe Aggie is a girl or handicapped and needs an auto. I don't judge.
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  #7  
Old October 24th, 2005, 01:55 AM
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Arbi Karapetian
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David,

How can you argue with such insightful and non-judgemental reasoning
...right there with ya Buck!

-arbi
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  #8  
Old October 24th, 2005, 07:35 AM
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Kevin,
If I'm correct, the LT77 would have to go. The R380 would be swapped out for a diesel one (K suffix?) as the bellhousing is different. So if you go with the 3.9/5spd, either way the gearbox gets changed out. I do know people have futzed with the ZF and have hooked them up to the diesel, but dont know any more than that.
Ultimately, what do you want?
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  #9  
Old October 24th, 2005, 10:50 AM
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David Shechter
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the bellhousing can be used, it needs to be modified to fit the starter. Essentially a little cutting and some simple metal work are required. The only thing that needs changing with the ZF is the torque converter.
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Originally Posted by MuddyOval
Sheki, you are a wang too.
A wang is another word for, you guessed it, A DICK!

Nothing racist, just pure DICK!
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  #10  
Old October 24th, 2005, 01:46 PM
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Kevin Collins
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LOL...

Well I'm not a girl nor handicapped, but my father does go with me on trips and is handicapped which is why my first 90 was an auto.

I'm honestly pretty lazy about driving and would probably go with an auto given a choice...unless it was a car that was rarely driven and one I would kick my own ass for buying an auto in.

Sounds like there'll be some work involved either way. Thanks for the comments.
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  #11  
Old October 30th, 2005, 01:37 AM
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Dave Butler
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I like the control a manual transmission has on wet slippery surfaces, when a tire slips it dosn't take off. But on the other hand an auto is nice because it gives you infinite gearing between 1st and fourth. I used a 2.5 liter out of a 90 Wolf in my 2A and loved the torque, it would crawl all day, On the freeway it was a "little" gutless. The 200 tdi is available in canada, there is a guy in Kamloops who gets all the military rigs that have been totaled out, he can only sell the parts. Thats where i bought my engine. My buddy bought a transmission with a transfercase already mated together for his 110 and it worked really well. Plus the transmission and tranny were already set up for the 300tdi.
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  #12  
Old October 30th, 2005, 11:42 AM
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Dennis Newman
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Wouldn't it be better to use a 94-95 and convert from gas/manual to auto/diesel? From the research I did here in Colorado, if you convert a 97 you have to have an OBD2 diesel meaning alot of electronics. That is to remain emissions legal. If you start with a 94-95 you only need the same level of electronics as was on the gas engine? I know there are ways around that but they could cause issues if you sell the vehicle to someone in another state?
D
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