[Poohbair]

just put in a ZF... its not gonna be a bolt in job, but it can and has been done alot.

 

[Poohbair]

if you have a 400 then make sure you get a ZF that was behind a 460 or the bells will be different...

 

[Poohbair]

I don't know the lengths of either, but I would imagine that you will have to modify the driveshafts... I can't imagine that they would be the same length.