Akinbeau:
Left as it is this will affect handling. Enlist the help of someone familiar with chassis design. You must verify the pivot mount dimensions through an "X" measurement from the front lower control arm mounting points, they must be exactly the same. Once this is confirmed you can THEN modify as necessary the locating mounts on the axle housing. The upper and lower rods that control the pinion angle can use threaded ends with rubber bushings (street rod fare) or high quality Rod ends (Hiem Joints). Use a RH & a LH on each rod so the tube can be rotated and effect the overall length of each rod as needed. This IS crucial to the oveall handling of the car. The Panard Bar must allow for dimensional change also.
Here is an example:
