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Np205

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  #1  
Old 03-03-2009, 11:36 AM
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Np205

Hey everyone -

I've got a lead on a spare / replacement NP205 - it'll be going into a 74 F250. The person selling it does not know what it came out of. From the plate info and the pics can anyone tell me if it'll work? I'd compare to the one installed but everything but the model has been worn away on the plate.

Model 205 Ratio 196
Serial 3 15 76
Assem NO 3987901






Thanks!
 
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Old 03-03-2009, 01:12 PM
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Less intersted in the data plate. The 205 is pretty much the same regardless.
Only a couple of variables here, Ford, or not. Then whether it is divorced or married,and after looking at your case, this tells me that this case is not a ford case. The drop is not on the correct side. The second pic is the output and this is on the wrong side. Second, the coarse input and strange pattern for the adapter tells me that this is a married case and that it is a chevy.
Your application will be a ford, divorced case, and has to have three yokes. No splined shafts like the one pictured. Your 74 will require a divorced 205, so anything other than this will simply not work.
 
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Old 03-03-2009, 01:17 PM
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Thanks! They didnt look like a Ford case at first glance , but I had to make sure. The deal would have been almost too good to pass up. Looks like I'll be headed to the pick and pull.
 
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Old 03-03-2009, 03:59 PM
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Happy searching. Hope you can put your hands on a divorced 205. I have a few, and they are not as common as one might think.
They are out there, but can be rather difficult to find when you really need one.
 
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Old 03-03-2009, 04:11 PM
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Old 03-03-2009, 04:41 PM
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If i have an np205 from a 78/79 truck is there any way to swap in a yoke to make it compatible with my highboy?
 
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Old 03-03-2009, 05:51 PM
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I would update the high boy to a newer married case and front axle if it were mine
 
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Old 03-04-2009, 04:00 PM
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you can buy new yokes just count the splines the problem is the 78/79s are going to be a married transfer case idk if they make an adaptor for it you could always buy a tranny from a a 78/79 to make it work
 
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Old 03-04-2009, 04:12 PM
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That evil bay transfer case is the correct ford divorced 205 transfer case. Not a bad deal either I might add.


Converting a married case to a divorced case does not work. The cases mount differently, and the married case does not have the giant holes or castings to accomodate any fasteners on the driver side of the case.
Now, the second reason would be the front of the case and the input shaft. The input shaft on a married case is "female" and not male, there is no way to install a yoke to it.
The same is true for the method in which the bearing retainer is actually bolted to the case. The case is drilled for the adapter and not for the retainer so retaining the bearing would be close to impossible.
This is far more work than it is worth.
Get the correct case and all of the troubles will be over. While reasonably rare, these divorced cases are out there, and not all that expensive.
 
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Old 03-05-2009, 06:41 AM
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There was just one on the boise craigslist
 
  #11  
Old 03-05-2009, 10:29 AM
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75f350, i was wondering if u knew of a good place for parts for np205s bein as mine needs some bearings and seals
 
  #12  
Old 03-05-2009, 10:43 AM
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summit racing is pretty good for parts umm bronco graveyar also but i have never done any shopping there
 
  #13  
Old 03-05-2009, 11:02 AM
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This is a good question. I used a bearing supply place when I lived in Arizona. See bearings are sized by ID, OD, and thickness. Find, or use the numbers on the original and a bearing supply store will get you what you need. This can save some time and a little cash. The same is true for seals.

Now that I am in So Ca, there are plenty of local shops that carry complete re-build kits. Tri-County Gear is where I usually buy complete kits, or even just seal kits.
I have used Jeffs Bronco Graveyard too.

Know that many kits only supply seals for 1310 yokes. If you use larger 1350, 1410, 0r 1480 joints you will be shopping again. This is part of the reason why I buy individual components.


If you are taking a 205 apart, also be aware that the aluminum bearing retainers are fragile and will break very easiily. Also note that these retainers have an oiling hole, and has to be re-installed correctly, in order to oil the bearing. Failure to notice this will result in a failed bearing.
 
  #14  
Old 03-05-2009, 11:41 AM
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thank you sir, love you trucks they're bada$$!!
 
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Old 03-05-2009, 11:45 AM
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Thank you for the compliments.......
 


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