Hey, first check the bearing preload—too tight and you’ll get that humming buzz. Use a dial indicator on the syncro ring and a torque wrench on the clutch bolts, tighten in a cross pattern to keep alignment even. A light oil or grease on the teeth keeps the noise down, but don’t over‑lubricate or you’ll slip. If you can, slide a small laser or optical comparator in front of the ring to double‑check the 0.01‑degree spot. That should keep the clutch humming smoother than a jazz sax.