if i were you i would gusset the crap out of the union where your crossmember is. maybe a triangle on the inside and out side...
It's already in the plans...
http://board.marlincrawler.com/index.php?topic=11425.msg223807#msg223807It's gonna require triangles and plating top, bottom, and all sides. I've got 1/8" and 3/16" plate for those requirements. I believe that is the next step. I'll try to get all support and gusseting done and new perches by next Friday...