Alternator on the LFX had a bit of a clearance issue – the stud on the back contacts the subframe.
Solution we came up with was to clock the alternator. Four M4 bolts holding the front and rear together (remember to mark the studs position before clocking), then remove the plastic cover on the rear and finally remove the small plastic cover over the brushes in the center on the back:
Pull the two halves apart, rotate the assembly 180° and drop them back together. You have to push the brushes in for the center shaft to slide all the way back in.
With the alternator clocked, the stud is nice and far away from the subframe: