I agree with JJJ...IT APPEARS THAT you have the early 1928 front cross member shown in the photo OR ARE WE NOT SEEING THE COMPLETE PHOTO?...OR, as you say...did you replace that with a 30-31 front cross member? (The raidiator shell connecting bracket is in the way)
Please review this if you get a chance:
http://plucks329s.org/pdf/frame/Evol..._Assembly2.pdf
Pluck