A variable turbine geometry turbocharger (100) with an adjustment ring assembly (45) having an adjustment ring (50) and a series of pivotable guide vanes (30) that are operably connected to the adjustment ring (50). A spring-biased retention clip (60) is between adjacent vane levers (36) and is attached to the adjustment ring (50). The retention clip (60) applies a force against the adjacent vane levers (36) and dampens and reduces movement of corresponding components.