Jeep 1996 Grand Cherokee Service Manual - page 80
(5) Firmly place Scooter Block and Dial Indicator
on pinion height block tool and zero the dial indicator
pointer.
(6) Slide the Scooter Block across the arbor while
observing indicator (Fig. 46). Record the longest
travel distance, whether inward (–) or outward (+),
indicated by the pointer.
The plunger travel, plus or minus the vari-
ance etched in the gear, is the required thick-
ness for the depth shims.
(7) Measure the thickness of each depth shim with
a micrometer. Combine the shims necessary for total
required shim pack thickness. Include oil slinger
or baffle thickness with the total shim pack
thickness.
(8) Remove the measurement tools from the differ-
ential housing.
DIFFERENTIAL SHIM PACK MEASUREMENT AND
ADJUSTMENT
(1) Place
Master
Differential
Bearing
D–134
(D–348) on the case hubs.
(2) Install a pilot stud at the left side of housing.
Attach Dial Indicator to housing. Load the indicator
plunger against the back of the ring gear (Fig. 47).
Ensure ring and pinion gear teeth are tightly
meshed. Zero the indicator.
(3) Insert a small pry bar between the bearing cap
and left side of differential case. Pry the case as far
as possible to right side (Fig. 47). Zero the dial indi-
cator pointer.
(4) Repeat the measurement several times to
check consistency. Record the travel distance.
The measurement above shows shim thick-
ness necessary to eliminate ring gear backlash.
Subtract this thickness from case zero end–play
shim thickness (Fig. 48). The shims must be
placed at the ring gear side between the case
and bearing.
(5) Remove indicator and pilot stud.
(6) Remove the differential case from housing.
(7) Remove the master bearing tools from the dif-
ferential case hubs.
(8) Position the backlash shims (with determined
thickness) on case hub (ring gear side). Install bear-
Fig. 46 Pinion Depth Measurement
Fig. 47 Shim Pack Measurement
Fig. 48 Shim Pack Calculations
ZJ
DIFFERENTIAL AND DRIVELINE
3 - 35
DISASSEMBLY AND ASSEMBLY (Continued)