The Anti-roll Bar Hardware contains all the parts needed to mount both front and rear bars.
#71134 contents: qty 2 Anti-Roll Bar Collars qty 4 Anti-Roll Bar Pivots qty 7 Set Screws, M3x0.5x3mm qty 2 Set Screws, M3x0.5x10 qty 2 Screws, M2.5x0.45x6mm BHCS qty 1 Set Screw, M3x0.5x2.5mm