993 suspension....

Monoballs for the rear (and front). Front are self explanitory; there's four, a large and small for each side. the question is for the rear. Kelly Moss sells the rears individually, so since I have Tarret Toe Links do I need 6 or 8 total. The standard fare (ERP, Weltmeister) quotes a kit of eight for the rear. Do I save any by having toe links that already have monoballs in them?