when i turn my motor off it shakes a little not bad but i never noticed this before it idles fine runs fine jus a lil shake when i turn off is this normal???

 

auto or manual trans? Tell us more

 

Mine does the same thing, I just figured its a diesel and thats how it acts.

 

auto trans 186000 miles on truck

 

Does it do it all the time, or just under certain conditions? Hot ,cold,etc.
Every 7.3L has it's own personality, but mine did that too. It didn't matter whether it was warmed up working hard or after a leisurely jaunt. It turned out that I had a bad motor mount on the pass side.

Make sure you post your findings.

good luck,

Austin