46forme - No, the upper grill is not welded to the lower.
A check of the grill this morning reveals as much as a 1/4" runout from side to center which would definitely account for the poor fit-up. Right now, at this point in time, I'm not sure how I will approach the fix. I do know that someday I'll refit it as it will bug me up. I just wish I would have done the fit-up prior to the chroming, but generally chrome work down here requires up to 6 months at times.
I have another "old" upper grill assembly that I'm going to take a look at and see what the fit is. The horizontal bars on that particular grill are more or less parallel.
Thanks for the input -- I think I just needed to vent.
Don