8 hours or less with air tools and experience. Longer without the other two. Not hard, just tedious. No need to separate the upper and lower sections unless you have to. Replace your coolant nipple from the el cheapo pot metal one to a steel version. Check out this other post that deals exactly with this issue. The part number for the steel version is #24503681 and it cost $10.55 at the dealer where I got it from. -Chris
http://www.automotiveforums.com/vbul...d.php?t=246248