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Negative.  Nothing will properly swap where a NP203 was, it's adaptor and output shaft length are unique.
 

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You’ll still need to swap the transmission output shaft or you won’t have enough spline engagement.
 

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Discussion Starter · #6 ·
Ok so the output shaft lengths are different in the tranny’s. That’s what I needed to know. Thank you guys. I’m not sure I’ll go through the trouble of swapping since I also have a 205 that’s a direct swap.
 

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viperblue72 said:
Ok so the output shaft lengths are different in the tranny's. That's what I needed to know. Thank you guys. I'm not sure I'll go through the trouble of swapping since I also have a 205 that's a direct swap.
The 205 is not a direct swap....it requires the same changes. As Elwenil said, only a 203 will go in place of a 203.
 

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Agreed, the mated, 23 spline version of the NP205, the NP208 and the NP241 will all directly swap.  Nothing swaps with a NP203 except another NP203.
 

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Discussion Starter · #9 ·
Mopar572 said:
The 205 is not a direct swap....it requires the same changes. As Elwenil said, only a 203 will go in place of a 203.
I have a 205 mated to a early 727 where a 203 used to be and I didn't have to do anything except have the right adapters. It's in a small block 727 parts truck I have. Am I missing something g?
 

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You most likely are lacking a lot of spline engagement. It makes for a weak setup where twisting off a shaft is a real possibility.
 

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As we are saying, it is possible, but you don’t have nearly enough spline engagement (in my personal opinion)
 

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Elwenil said:
You most likely are lacking a lot of spline engagement. It makes for a weak setup where twisting off a shaft is a real possibility.
what he said and it was mentioned further above also
 
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