For Thrustmaster T3pa/ T3pa Pro 1 Set Throttle Brake Clutch Pedal Damping Racing Gaming Modified Special Hydraulic Damping Kit - Accessories - AliExpress
Amazon.com: Obokidly Throttle/Brake/Clutch/1Set Pedal Damping Modification Parts Accessories for Thrustmaster T3PA PRO/Thrustmaster T3PA Racing Game (B-T3PA Clutch Damping, Red-Black) : Video Games
FS: Thrustmaster T3PA Pro pedals w/ upgraded springs & brake mod. UK/Europe Sale - Sim Gear - Buy and Sell - InsideSimRacing Forums