From 350 trans to 400 transmission

[silverlostdog]

I have a 1977 C20 3/4 ton I'm in the process of swapping in a 406 small block. What will it take to install a turbo 400 Trans instead of a 350 Trans? Will I have to get a drive shaft made or is there one from another vehicle I can use.
Any info or assistance will be greatly appreciated.

Silverlostdog

 

[74Blaze]

Not sure of the interchange with another vehicle, but if you need one made, I recommend Fort Wayne Clutch & Driveline. They've built several for me over the years and always have done a good job. They ship anywhere in the country.