engineRear Main Seal Torque Specsfor 2021 GMC Sierra 1500 3.0L I6 Duramax Diesel · RWDUnitslb-ftNm13 fastenersSeqComponentTorqueAngle—Cover Bolts13 lb-ft · 18 Nm——Electrical Connector Bolts5 lb-ft · 7 Nm——Flexplate BoltsAutomatic transmissions63 lb-ft · 85 Nm——Flywheel BoltsOften TTY, tighten in star pattern70 lb-ft · 95 Nm——Gasket Bolts16 lb-ft · 21 Nm——Gasket Surface BoltsClean mating surfaces16 lb-ft · 22 Nm——Mounting Bolts37 lb-ft · 50 Nm——Oil Drain PlugUse new crush washer26 lb-ft · 35 Nm——Oil Pan BoltsRear section9 lb-ft · 12 Nm——Rear Main Seal Housing9 lb-ft · 12 Nm——Sensor Bolts8 lb-ft · 11 Nm——Sensor Mounting Bolts8 lb-ft · 11 Nm——Transmission-to-Engine Bolts41 lb-ft · 55 Nm—📝 Suggest a correction to this torque spec