In Search of a better shift knob. Toyota GR86 Forum GT86 Forum Shift Knob For Gr86 at Darcy Ryan blog In search of the perfect shift knob! Toyota GR86 Forum GT86 Forum GR86 GR86 Gear Knob Thread Page 9 Toyota GR Forum for owners of. A simple and elegant shift knob from Cusco. Made of Duracon (Polyacetate) that is lightweight and finished smooth. This shift knob is designed perfectly for the 6spd Toyota 86 Scion FR S Subaru BRZ so that the reverse ring is in perfect distance from the bottom of the knob. TOYOTA GR86ZN8 2022 2024 FA24 (2. 4L) All Model Ball shape (44mm OD), Black, Material: Duracon For Scion FR S, Subaru BRZ, Toyota 86 (Kouki) 6MT Model Thread Size: M12 x P1. 25mm