just cut the spring perches off move them out 3 in weld them back on,,mark your spring perches all the out to end and relocate for pion angle the axle gives 1.1 in wider on each side ...lets you to install wider tires with the right backspacing.....
exactly my thoughts. but the pinion is heavily offset in these rear ends, and i already hit my mufflers with the 8.75 pinion yoke under hard lateral acceleration. thats why im concerned about the pinion location in the car.