Jeep Wrangler 1997 Manual page 232

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DIFFERENTIAL AND DRIVELINE

ADJUSTMENTS (Continued)

pinion etched with a (0). The standard setting from

the center line of the ring gear to the back face of the

pinion is 109.52 mm (4.312 in.). The standard depth

provides the best teeth contact pattern. Refer to

Backlash and Contact Pattern Analysis Paragraph in

this section for additional information.

GEAR MATCHING NUMBER

(SAME AS RING GEAR NUMBER)

Fig. 67 Pinion Gear ID Numbers

DRIVE PINION

Compensation for pinion depth variance is achieved

with select shims. The shims are placed under the inner

pinion bearing cup in the axle housing bore (Fig. 68).

If a new gear set is being installed, note the depth

variance etched into both the original and replacement

pinion gear. Add or subtract the thickness of the original

depth shims to compensate for the difference in the depth

variances. Refer to the Depth Variance charts .

PINION GEAR DEPTH VARIANCE

DIFFERENTIAL

Fig. 68 Shim Locations

Note where Old and New Pinion Marking columns

intersect. Intersecting figure represents plus or

minus amount needed .

Note the etched number on the face of the drive pin-

ion gear (-1, -2, 0, +1, +2, etc.). The numbers represent

thousands of an inch deviation from the standard . If the

number is negative, add that value to the required

thickness of the depth shim(s) . If the number is posi-

tive, subtract that value from the thickness of the depth

shim(s). If the number is 0 no change is necessary . Refer

to the Pinion Gear Depth Variance Chart.

Replacement Pinion Gear Depth Variance

Original Pinion

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