Awesomatix SH5x7x0.4 - Small Diff Washer

These precision shims are the unsung heroes of your differential setup. The Awesomatix SH5x7x0.4 washers measure 5mm inner diameter, 7mm outer diameter, and 0.4mm thickness, giving you the exact spacing you need to dial in your diff preload without guesswork.

What makes these washers essential is their consistency. Each one is manufactured to tight tolerances so you get repeatable results when you're chasing that perfect balance between corner entry rotation and mid corner stability. Whether you're building a new diff or fine tuning an existing setup, having a stack of these on hand means you can make incremental changes during practice without tearing down your entire drivetrain.

They work across Awesomatix touring car and pan car platforms, so if you run multiple classes you only need one part number in your pit box. The 0.4mm thickness is thin enough to let you stack combinations for precise adjustments but thick enough that they won't deform under load during a long main event.

Smart racers keep extras because diff tuning is never a one and done process. Track conditions change, tire compounds evolve, and your driving style adapts. These washers give you the freedom to experiment without committing to permanent changes.