When a Mustang is lowered,the front roll center changes due to the new
position of the suspension pivot points.Lower the car too much and the
front roll center drops too well below ground level,and worse than that,
the roll center moves from side to side as the body rolls,resulting in lost
of grip and erratic handling.The lower roll center causes the body to roll
more easily.Countering this tendency usually requires a significant increase
in front spring rate to simply control the added roll due to the lowered the
roll center.This higher spring rate not only hurts your ride quality,but it also
reduces grip on rough surfaces,as the stiffer springs cause the tire to skip
over any bumps instead of following the contours of the road.The X2 balljoint
was designed to eliminate these issues by correcting the front roll center
geometry.The X2 balljoint has a longer shaft,to raise the spindle relative to
the balljoint pivot point.Spacers for the springs are included in the X2 balljoint
kit to maintain the same ride height as a stock balljoint,but with a much improved roll center height.Wit the roll center restored to the proper height,
smaller front swaybars and softer springs can be used.The result is a suspension that works for you to accommodate the small and the large imperfections that are in any road,freeway,or track.allowing the tires to stay
planted on the ground where they belong.