The pre-'74 factory 4X4 had a similar short shaft, not sure how the length compares to yours. 74 was the last year for the divorced part time transfer case as far as I know. This is a 74 that had a 13" shaft with a NP 435 and NP 205 transfer case. The 2WD NV 4500 is 8" longer than the NP 435, not sure about the automatic trucks, but I know they used the short output shaft 727 with a fixed yoke.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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