Saw your technique for adding dropouts using the joist angle. I'm working on the same problem for a trailing I am putting together. My plan was to use a 36"inch steel hanger angle I bought at Lowe's and cut the thing into 4 pieces. The angle I bought already has holes in it, but I have to hacksaw the thing into 4 pieces (It's made of steel too...)

http://www.lowes.com/lowes/lkn?actio...286&lpage=none