Clutch Aligning Tool Fiat ** Suits 5163936 + 5163936L **Info:Pilot Dia Inch: 0.787Pilot Dia Metric: 19.9898Spline Count: 10 / 16Spline Inch: 1 1/8" / 1 3/4"Spline Metric: 28.5750/ 44.4500Suits QT5163936 & QT5163936L