Axial AXI-3324 Front Axle, Assembled: SCX30 1/43 Slot Car you can use a 1/5

you can use a 1/5 winch servo

It is designated for use with 2pcs

Aluminum construction offers improved durability and heat resistance over stock parts

Outer Diameter    4

30pcs small ball

Axial AXI-3324 Front Axle, Assembled: SCX30 1/43 Slot Car you can use a 1/5Axial AXI 3324 Front Axle, Assembled: SCX30 This genuine Axial front axle comes fully assembled and is a direct fit replacement option part for the SCX30. As a genuine Axial replacement option part, it is manufactured to the same fit, form, and durability standards as the original equipment on your model, so performance and reliability stay consistent. It installs with basic hobby tools and hardware, making it a straightforward way to repair,