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SPL Parts adjustable front caster rod bushings for BMW F2X/F3X replace the stock flexible rubber bushings with articulating spherical bearings to reduce deflection and maintain suspension geometry under load. The FKS Series uses 1" FK bearings with self-lubricating Teflon liners and CNC-machined offset spacers that permit +/-4° of caster adjustment. Sold as a pair and made in the USA.
SPL Parts 2012+ BMW 3 Series/4 Series F3X Adjustable Front Caster Rod Monoball Bushings
