A Subaru Crosstrek's factory automatic transmission mount uses a soft rubber insert that wears over time, letting the drivetrain shift and clunk under acceleration and deceleration. RalliTEK's Anti Wobble Insert replaces it, tightening up that movement without the harshness of a solid mount. Choose the Soft Insert for street driving with minimal added noise, or the Hard Race Insert where firmness matters more than refinement. Automatic transmission Crosstrek models only. Canada-wide shipping from Flat 4 Offroad in Calgary.