Will These Parts Work Together?

[nvrenuf]

I'm trying to help a friend put some parts together to get a truck running. The ultimate goal is to put together a TH400/205 combo using good parts he has on hand.

Will this combo of parts work -

TH400 (from a CUCV w/208)
Tall 400/208 adapter
205 (round pattern w/ long input)

We're pretty sure the round pattern on the t-case side will work so the parts should bolt together BUT will the shaft engagement be correct?

BTW - we know there will be no provision for a t-case shifter, this is only temporary to make a truck driveable.

 

[sled_dog]

is the 205 32 spline input? Thats your biggest factor I think.

 

[nvrenuf]

Yes, it's the later 85+ round pattern 205 so it has a long style 32 spline input.

 

[nvrenuf]

TTT... nobody's done anything like this?

 

[dyeager535]

Don't know if it matters in YOUR case or not, but the 465 round pattern adapter is 3" longer than the figure 8 pattern one.

Pretty sure this was entirely so GM could run the same driveshaft whether auto or manual, so auto adapters probably same length. Make sense?

 

[nvrenuf]

Yes, it does. In fact, TARussell and I were talking about the very same thing the other day. Pretty cool to discover neat little trivia type things like the adapter length.