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Cucv HD Th400 output shaft to 84 np205

SpeedlabDan

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In the case that I need to pick up a new trans I found a HD case th400 out of an 85-87 cucv, cheap.
Now my 84 crew cab has an np205, do the 208s share the same input shaft? Thanks guys
 

obijuank5

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No. You'll need a th400 to 205 figure 8 or round adapter and a long 32 spline np205 input gear.
 

campfire

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The CUCV TH400 is a normal diesel tranny. Being diesel it has a different governor spring with lower shift points, but it's not any stronger than a civilian tranny.
 

diesel4me

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Diesels have a 6 bolt converter with a lower stall speed also--but GM used them behind some gas engine applications too--I remember a G-30 van my brother bought that had a TH400 in it,to swap in place of the manual 3 speed his had,was equipped with the 6 bolt torque converter..the van had a 292 straight six,was a former handicapped school bus..
 

SpeedlabDan

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Yea it looks like even though it's cheap I'll probably have to pull and rebuild this one. I was trying to hold out bc I have an L 18/ally combo to put in and I don't want to double the work
 
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