Visually inspect the parts for damage.
If the gear or the shaft must be replaced, refer to Accessory Drive Gear – Replacement.
Visually inspect the shaft bore in the housing for scoring or damage.
Measure the inside diameter of the shaft bore in the drive housing.
Measure the drive shaft outside diameter.
Measure the inside diameter of the splined coupling gear or the hub coupling.
Measure the inside diameter of the drive pulley bore.
