B&M 4L80E Traveler Stall Converter 1900 - 2100rpm # BM70431Torque Converter, Traveler, Chevy, 4L80E, 1,900 2,100 rpm Stall Range, Each Torque Converter Use: Truck Towing Stall Speed Rating RPM Range: 1,900 2,100 Torque Converter Bolt Circle (in.): 11. 500 in. Input Spline Quantity: 35 Anti Ballooning Plate: No Lockup Compatible: Yes Furnace Brazed: Yes Balanced: Yes Mounting Hardware Included: No Torque Converter Stall Note: Actual stall speed may differ due to engine combination, gear selection, and vehicle