SPL Parts Toyota A90/Z4 Rear Traction Links

Rubber should be saved for the tires. The factory rear traction links on the Toyota GR Supra A90 and BMW Z4 G29 use soft rubber bushings that flex under load, which lets alignment and toe change right when you are asking the car to work the hardest. SPL Parts replaces those links with fully adjustable, spherical bearing components that keep the suspension honest and repeatable on both street and track.

Motorsport grade construction

Gun drilled 2024 aluminum links, SPL’s 6061-T6 rotating clamps and Teflon lined FK spherical bearings keep weight down while delivering precise, low friction movement. Stainless or titanium hardware is used throughout for strength and corrosion resistance, and every kit is designed, machined and assembled in the USA.

Clean traction and better feedback

Rear traction links manage fore aft movement of the rear suspension under throttle and braking. Replacing the factory rubber-bushed links with SPL spherical bearing links sharpens rear axle response, improves traction and helps the car put power down more consistently.

We use SPL hardware across many of our own builds because it is easy to work with, holds settings and stands up to real track mileage. If you are dialing in the Toyota GR Supra A90 and BMW Z4 G29 for serious driving, these pieces are a key part of getting the alignment and feedback you want.