TH400 Transmission slip yoke

[AvantiRich]

I'm trying to find a replacement slip yoke for my original TH400 tranny.  I believe a C3 'Vette 68-81 used the same quick-change slip yoke, but I can't find dimensions for that part number anywhere, "CA-41277".  Anyone know it this is a good replacement or know of another one?  Most I've researched are longer than the 5.5" (overall) unit in my car now (pic attached).

[jccatwb]

Go to ' Drive Train America'  They probably have what you need. (I got one for a really screwed up 63 Ford 390 with a T-10 4spd.)