The GKTECH S/R chassis rear knuckle reinforcement plates have been designed to brace the OEM rear knuckles where it needs it. If you've been drifting these cars for a while now, you would have seen the OEM cast knuckles break off on the balljoint mount and the toe arm mount, usually happening in spectacular fashion. We've made reinforcement easier than ever with our laser cut, pre-folded, ready to weld in plates. This is considered a must-do modification, as the OEM parts get older (more abused) and the difficulty of finding a replacement increases (and more expensive), we find it important to refresh and improve on OEM parts. Available separately for those who don't feel the need to reinforce all points. - CAD Designed - CNC Laser Cut from 0.19' (5mm) C30 steel Vehicle Compatibility: - Nissan S13 240sx - Nissan S14 240SX - Nissan S15 Silvia - Nissan Skyline R32 GTS-T - Nissan Skyline R33 GTS-T - Nissan Skyline R34 GT - Nissan Skyline R34 GT-T - Nissan C33 - Nissan A31 Cefiro NOTE: Sold as a set (i.e. left and right hand side). Includes toe arm brace and brace for ball joint to strut mount. NOTE: This is a DIY item that requires welding NOTE 2: This is not compatible with the alloy Z32 TT/GTR/R34 GT-T knuckles