Sierra Classic 2500 4WD V8-8.1L (2007)
Tighten the transmission mount bolts to 50 Nm (37 ft. lbs.).
3. Lower the transmission and remove the transmission jack.
4. Install the transmission mount to crossmember nut.
Tighten the transmission mount to crossmember nut to 40 Nm (30 ft. lbs.).
5. Lower the vehicle.
