Q: We received a Range Rover 3.0T with 8-speed manual automatic transmission. The owner reported that the rear body would vibrate and make abnormal noises whenever the speed exceeded 120km/h. Based on experience, we tried to replace the three longitudinal and transverse drive shafts, but the vibration and abnormal noises remained. What other possible causes of the failure are there?
A: According to your description, the source of the vibration and abnormal noise may come from the rear axle differential. It is recommended to dissect the rear axle differential, focus on checking the bearings and gears, replace the loose parts caused by wear, and adjust the meshing clearance of the master and slave gears. This should eliminate the failure.