Repair ZIL-5301
When determining the condition of the rear axle by noise, you should make sure that the sound is coming from the axle
Table of possible faults ZIL - 5301 with engine D 245 E3
Troubleshooting algorithm (Remedy)
Problems starting the engine

To disconnect the rear axle without springs, the car must be placed on a flat horizontal platform or on an inspection ditch equipped with a lifting device

Before assembly, wash the main gear and differential parts in the cleaning solution MS 6, MS 8 TU 6-15-978-76, blow with compressed air, check for compliance with technical requirements