how to tell the difference between the pre 11/22/03 and later 6.0
i recentley just sold my 05 cc 6.0 PSD, to buy a 04 psd, i have read a few posts saying the new engine will be in it as long as its built after 11/22/03,i also heard from another mechanic saying that looking at the engine there will be a module on the drivers side ( i beleive) and only the 04 and newer 6.0's have it. can anyone verify this or have a picture? and does anyone know any other ways to tell the difference in case this isnt the original cab on the body.
any help is greatly appreciated!