The 3RACING 4mm Shim Spacer set is intended for competitive tuners and track technicians who need exact control over component spacing. With three incremental thicknesses and ten pieces each, the kit supports repeatable adjustments to suspension geometry and transmission fit.
Use these shims to fine tune camber settings, correct differential spacing and optimise pinion to spur clearance. The small thickness steps enable accurate measurement-driven setup changes rather than trial and error.
Introduce shims incrementally and validate setup changes with measured lap tests. Document each shim placement to build a reliable setup map for different track surfaces and tyre choices.