Newbie post: some K5 Q\'s Hi guys, I don't have a K5 yet but am looking for one. I looked at a 79 today- Fulltime 4wd auto with a V-8.... My first question is: does anybody have any RPO codes so I can find out which V-8 it is( the engine is covered in grease/oil/muck) Secondly, I am not big into the fulltime 4wd. I searched some posts and it was said you can modify the truck to become partime 4wd. What do I need to do to do this( obviously buy some locking hubs) but are they direct bolt on? and what do I need to do to the transfer case? I don't think this is the right K5 for me but incase I run into another, I'd like to know what I a up against. Thirdly, I live inthe rust belt so where are the typical problem spots for rust on these vehicles. The one I looked at today was bubbled in a vertical line below the doors, on both sides and on the interior drivers side kick panel. Is this typical? Also the inner rear fenders where in too good of shape. Thanks for the help.