You need to define what years , because there is a difference in the front wheels track (width)between 70-72 and 73-76.

The 73-76 is wider because of the bolt pattern change, it added 1.25 inches because the factory switched on B/E front spindle/rotor setup instead of making an A body specific setup as a cost savings measure. The switch in the rear only added about 1/2 inch.