Crank shaft in-out allowable movement
 

While installing my fan in my 3.0 I noticed that when I ever so slightly pried a screw driver between fan shoud and lower crank shaft pulley to help seat and align the fan shroud, I noticed that the crank shaft moves in and out slightly when lighsly pried upon. Is this normal??

Antares
fatnwide

Some slight endplay is normal, but noticeable end play is probably too much. I don't have the spec off the top of my head, but the crankshaft has a thrust bearing that should constrain the end play...

-Wayne