To answer your wondering, it all has to do with load rating and load angles, because the Mustang 2 spindle has a greater pin inclination than a mopar, it forces the upper control arm to be shorter,(upper ball joint closer to the frame) therefore moving the top of the coil over in at a greater angle, increasing the the load inward, I wanted to keep the load as vertical as possible, with a stock setup, that is easier attained since the upper ball joint is out further from the frame, allowing for a more vertical load on this stock coil over conversion kit, so in fact, mounting the coil overs on my ifs kit would put greater stress on the stock shock tower than the factory conversion kit,when braced the same, it's all a matter of leverage/load angle,just wanted to clear that up so there's no confusion.