Always replace locking devices with ones of the same design.

Always inspect reusable fasteners prior to reinstalling them in a vehicle. Discard and replace fasteners that show signs of damage or accelerated corrosion.

Always inspect locking tabs and washers. Do not reuse if damaged.

To prevent rotational damage to components, use two wrenches when loosening and tightening unions.

Discard and replace Nyloc and torque nuts after removal.

Discard and replace encapsulated and patch bolts after removal.

Approved locking agents must be applied to some threads on reassembly where indicated in the procedure.