Spot worn synchros fast. Learn real signs, road tests, fluid tips, and when to rebuild your manual gearbox-without confusing clutch or linkage issues.
A brief grind or baulk when engaging a specific gear-often worse on quick shifts and improved by a slower shift or rev-matching-points to a tired synchro for that gear.
Fresh, correct-spec fluid can improve engagement feel and reduce baulking, but it won’t restore worn cones or rings. If grinding persists, hardware work is next.
Clutch drag causes hard selection at a stop and creeping in gear with the pedal down. Synchro issues show up during the shift, often gear-specific and rpm-dependent.
Done correctly, double-clutching reduces synchro workload by matching speeds. It’s kinder to the hardware, not harmful, and a smart workaround for a tired gear.
Synchros don’t hold a gear in; pop-out usually points to worn dog teeth, slider/hub, detents, or external issues like mounts and linkage.
You can, but every grind risks the dog teeth. Use rev-matching and double-clutching to reduce load and plan a repair before damage spreads.