B&M Tork Master Torque Converter Ford AOD # BM40437Torque Converter, Tork Master, 1,900 2,000 rpm Stall Range, Ford, AOD, Each Torque Converter Use: Street Strip Stall Speed Rating RPM Range: 1,900 2,100 Torque Converter Bolt Circle (in.): 11. 400 in. Anti Ballooning Plate: No Lockup Compatible: Yes Crank Pilot Diameter (in.): 1. 375 Furnace Brazed: No Balanced: Yes Mounting Hardware Included: No Torque Converter Stall Note: Actual stall speed may differ due to engine combination, gear selection, and