9" Ford install Question

My stock gas tank wore a hole throw it because I had a LPW Racing Diff Cover that was just too big. I have a stock 8 1/4 open diff rear and would like to upgrade to a 9" Ford. I was wondering if there are any clearance issues with installing the 9" with the Stock Gas tank or any other clearance issues anywhere else.

I don't need advice on "You should go with a Dana 60, 8 3/4, etc, instead".