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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Transfer case question

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Old Mar 15, 2009 | 10:27 PM
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ddcjeff
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Transfer case question

I just picked up a 1983 F-100 4x4 that someone modified. It has a 460 lincoln motor in it. I am trying to figure what transfer case is in this so I can figure out the shift pattern it uses. I have pictures, but I am new here and not sure how to upload them. the number stamped in the case are

C1125
2N

Thanks in advance,

Jeff
 
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Old Mar 15, 2009 | 10:32 PM
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1st off, is it cast iron or aluminum? Have you tried moving the lever?
 
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Old Mar 15, 2009 | 10:44 PM
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Yes I have moved it, wont move all the way up, I found Nuetral, Pull back and it goes into 4wd then what appears to be 2wd. the case is cast.

Jeff
 
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Old Mar 15, 2009 | 10:46 PM
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Did the 83 f-100 come 4wd? I know the stock motor was the 300 six

Jeff
 
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Old Mar 15, 2009 | 10:53 PM
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Only the f150 came in 4wd. The 460 only came in the f250-up, and only around 83 or 84 f250's and up.

If it's cast iron, it's probably a np205 transfer case, although I think there was a np203 that was cast iron, and it was a full time 4wd case. These are all 70's transfer cases.

All the 80-up transfer cases were cast aluminum, and usually they were the np208, or the borg warner 1345. The np208 lever moves straight back and forth, while the borgwarner requires you to pull the lever toward your leg before it will go through all the ranges.
 
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