Intermediate steering shaft

[cetaneaddict]

Bare with me. I'm trying to help a friend out.

Is the steering shaft the same from a gas to a diesel 3/4 ton 4x4? If not what are the differences and how can you tell them apart ?

 

[Cozze44]

They are the same gas to diesel, but differ in years: 03-04 and 05-09

 

[cetaneaddict]

Thank you!
How do you tell them apart?