Isuzu Trooper 1999 Workshop Manual page 241

3. Clean the side bearing bores. Install the dial
indicator with the discs and arbor. Install and
tighten the bearing caps to the specified torque.
Torque: 98 N·m (72 lb ft)
Legend
(1) Dial Indicator: J–8001
(2) Disc (2 pcs.): J–23597–8
(3) Arbor: J–23597–1
(4) Gauge Plate: J–23597–42
4. Set the dial indicator to "0". Place it on the
mounting post of the gauging arbor with the
contact button touching the indicator pad. Force
the dial indicator downward until the needle has
made a half turn clockwise. Tighten down the dial
indicator in this position.
DIFFERENTIAL (FRONT)
Legend
(1) Dial Indicator
(2) Ganging Arbor
(3) Plunger
(4) Gauge Plate
5. Position the plunger on the gauge plate. Move the
gauging arbor slowly back and forth and locate
the position at which the dial indicator shows the
greatest defection. At this point, once again set
the dial indicator to "0".
Repeat the procedure to verify the "0" setting.
415RS010
6. After the ZERO setting is obtained, rotate the
gauging arbor until the dial indicator rod does not
touch the gauging plate.
Record the number the dial indicator needle
points to.
425RS020
Legend
(1) Example=Dial indicator reading of 0.085
4A1–13
425RS021
425RS022