Factory Pro FP-M-AC3020LB 3mm x 2.0t Light Blue Shim Collars - 10 Pack  [FP-M-AC3020LB]

Precision 3mm Light Blue Shims for Accurate RC Tuning

For builders who dial in their setups, the Factory Pro FP-M-AC3020LB 3mm x 2.0t Collar in Light Blue is a handy parts bin essential. This ten piece set lets you fine tune spacing and alignment across suspension and driveline interfaces for cleaner handling and reduced slop.

What makes these shims useful?

These light blue collars deliver repeatable spacing so parts sit square and run true. Use them to tweak suspension geometry, tighten gear mesh, or eliminate unwanted axial play without adding bulk. The 3mm diameter and 2.0t thickness match many common RC applications.

Common Uses in the Workshop

Factory Pro shims are versatile across multiple platforms, from small on-road cars to larger touring and basher rigs. They are especially handy for maintaining correct gear engagement and stopping shaft wobble, which helps extend component life and keep handling consistent.