I got it cut out, and all the bolt holes line up without touching the differential, BUT, there is less than 1/16" clearance between the bottom of the diff and the cross member. And the input yoke to the back of the diff only clears the cross member by about 1/2" or less in one spot. Should I worry about it contacting?

My own thought are the diff won't move any since the mounts are solid. But I have been wrong before. What do the experts say?