While installing new DSS DS first noticed Barton shifter not centered in the tunnel cutout, black mounting leg touching drivers side of opening. Then when putting the new DS in noticed it is 1/2” away from passenger side of tunnel and about 1 1/2” space on drivers side. Motor or tranny mount going south? 16 M6 , 11,000 miles, 3500 since stepping up to about 825 wheel. Suggestions??