GMC 1989 Light Duty Truck Repair Manual page 183

CODE N U M B ER ON O RIG INA L PINIO N
+ 2
+ 1
+ 2
Add .001 Add .002 Add .003 Add .004
—
Subt.
+ 1
Code .001
Number
Subt.
Subt.
0
On
.002
.001
Service
Subt.
Subt.
Pinion -1
.003 .002
Subt. Subt.
9
L
.004 .003
Figure 14— Pinion Depth Codes
0 -1 - 2
Add Add Add
.001 .002 .003
Add Add
-
.001 .002
Subt. Add
-
.001 .001
Subt. Subt.
.002 .001.
F -04748
1
10 /2-INCH RING GEAR 4B4-7
A. Press
B. A d a p to r Plug
Figure 16— Installing the Ring Gear to Case
2. Differential side g ears (29) and thrust w ashers
to th e d iffe re n tia l c a s e h alve s in th e ir o rig in al
locations.
3. Differential spider (33) to the differential.
4. T h e case halves.
• Align the scribe m arks on the ca se halves.
• C h ec k that the m ating surfaces of the differential
case and the ring g e a r are clean and burr free.
5. Ring g ear (14) to the differential (figure 16).
• T h read two left-hand th read ed studs into the
ring g ear on opposite sides.
• P lace the ring g ear onto the case, and align
the holes in the case with the studs.
• Press the ring g ear onto the case far enough
to start the bolts using J 8107 to protect the
differential from the press ram.
6
. N ew ring g ear bolts (36).
• T ig h te n th e ring g e a r bolts a lte rn a te ly in
stages g rad u ally pulling the ring g e a r onto the
differential case.
(30)