ADJUSTMENTS
ADJUSTMENT - PINION DEPTH
PINION DEPTH VARIANCE
Ring gear and pinion are supplied as matched sets.
Identifying numbers for the ring gear and pinion are
painted onto the pinion gear shaft and the side of the
ring gear. A plus (+) number, minus (–) number or zero
(0) along with the gear set sequence number (01 to
99) is on each gear. The pinion depth variance (1) is
the amount the depth varies from the standard depth
setting of a pinion marked with a (0). The remaining
numbers (2) are the sequence number of the gear set.
The standard depth provides the best gear tooth con-
tact pattern.
Compensation for pinion depth variance is achieved
with select shims (3). The shims are sandwiched
between the pinion head bearing cup (4) and axle
housing.
If installing a new gear, note the depth variance number of the original and replacement pinion. Add or subtract this
number from the original depth shim to compensate for the difference in the depth variances. The numbers repre-
sent deviation from the standard in microns. If the number is negative, add that value to the required thickness of
the depth shims. If the number is positive, subtract that value from the thickness of the depth shim.
3 - 120
REAR AXLE - 198RII
LX