Hello
I just serviced the truck spark plugs,air filter,oil & filter,Tranns service,Serp belt,differantial oil front and back, wanted to do the fuel filter but I'm little confused it appears I have the old version 163 477 02 01 with 3 lines plus the vent hose my question is are these upgraded fuel lines bigger then the originals? The new version looks the same 163 477 07 01 do I need to buy the new fuel lines with the fuel filter?
I have no issues the truck runs and drives fine 97K mi.
What kind of fluid does the Transfer Case take?

Thanks

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1995 E320
1998 E320
1999 E320 4Matic
2000 E320 4Matic
2000 ML320
2007 C230 Sport
2003 Cadillac CTS