Having fun yet?

Here is a drawing of the firewall and some of the holes. It is from the 1947-54 Factory Assembly Manual. Particularly useful for 54 and early 55 owners and available from most of the vendors. http://www.picturetrail.com/sfx/album/view/23794995

Jim Carter has put together several informative articles. Here is one with information on the rear bumper http://www.oldchevytrucks.com/blog/2010/02/1954-rear-bumper/

Peter
55s (got one of each)