Torque Solution Adjustable Thrust Arm Bushing KitTorque Solution Adjustable Thrust Arm Bushing Kit Applications: 996TT GT2 GT3 C2 C4 C4S and GT3 Cup 997TT GT2 GT3 & RS C2 C4 and GT3 Cup Torque Solution adjustable thrust arm bushing kit replaces the factory, rubber bushings on the wheel end of the control arms with a billet aluminum bushing, this will allow for better handling and most important also allows for the adjustment of caster. Replacement thrust arm bushings significantly improve the