Do not forget to perform a lateral run-out test
Spare parts from manufacturers of proprietary goods are carefully produced according to state-of-the-art production standards. However, particularly precision components such as clutches may be damaged due to improper handling during transport to the workshop. The packaging condition is a first indication.
Therefore, an axial runout test of the clutch disk should be performed before you replace a clutch, even if this is not suggested in the service plan. Since clutch actuation is a very precise process, the facings' axial runout must not be significantly above 0.5 millimeters. Otherwise, shifting is very difficult or entirely impossible.