Dana in an A-body question

I have a question for those of you who have put a Dana in your A-body (67-69 Dart in particular) and mounted it in the factory rear end location. Did mounting it in the factory location on the springs that an 8 3/4 (or smaller) rear would be cause any gas tank clearance issues? It looks like a Dana sticks out more on the back of the center section than an 8 3/4.