cant find a Intermediate Steering Shaft

hi i looking for a intermediate Steeringshaft coupler for my 66 cuda but cant find one.
At amazone they say it want fit, is this true? i thought they was all the same?
this is the link and the pic:
and this is the link
[ame="http://www.amazon.com/gp/product/B000TYS9XC?&tag=shopwiki-us-20&linkCode=as2&camp=1789&creative=9325"]Dorman 425-253 Intermediate Steering Shaft : Amazon.com : Automotive[/ame]

what you think does it fit or not ?