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Np203

Yobtaf

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Besides input shaft, is there any other difference between a 203 out of a 74 3/4ton or 75 k5? I know the rear yoke looks a bit different. I just got a Doug nash p/t shaft just wondering if it will work on either one.
 
They should both be the same, the rear yoke might be bigger for the 3/4. GM didn't have a 4wd 400 back then, they used either the 465 or 350....
 
The K-20 might have a wider chain . Some did others did not - don't know what was the reason for it.

Tom
 
most 203s are pretty interchangable. I have heard that some say the early ones have a different chain but I have never seen a different chain in any that I have taken apart I have even taken different years front center and tail cone and put them together worked just fine
 
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