First: what is the Motorcraft part # of the PCV valve for the '08 Mark LT?

I'm getting the one with the long bed (shortly). Did it automatically come with the 35.7 gallon gas tank standard or was it an option?
If I have the regular tank, is the installation of the 35.7 a big (i.e., expensive) job?

 

Nobody? .

 

The 37.5 fuel tank was an option item. Have no idea what it would involve or cost to switch from standard tank.

 

Thanks rander101.
Any know what is the Motorcraft part # of the PCV valve for the '08 Mark LT?

 

Sorry, don't know that number. You might search for it by name on one of the online parts houses like Rock Auto or any of a dozen different places and find the Ford/Lincoln part number.

Have fun with your truck!

 

Go to fordparts.com and put in the vehicle info. That's Ford's parts website, from there you can set it search local dealers and it will give you the price.