- middle drive gear (1)
- middle driven gear (2)
Galling/pitting/wear → Replace the middle driven shaft assembly.
2. Check: bearings
Damage/pitting → Replace the middle drive shaft bearing housing assembly.
3. Check:
- O-ring
- oil seal
Damage → Replace the defective part(-s).
4. Check: universal joint movement
Rough movement → Replace the universal joint.