Spicer Tandem Drive Axles Service Manual J340-S, J380-S, J400-S, W460-S - Manual (Page 24)

DIFFERENTIAL ASSEMBLY
1 . If ring gear was removed from differential case, reinstall at
this time. Clean mating surfaces and bolt ring gear to
differential case at 3 locations, 120º apart to help
eliminate ring gear runout. Use hydraulic press and
suitable riveting fixture, as shown. Pressure requirement
per rivet is 45-50 tons (41-45 metric tonnes).
The ring gear is properly installed when a .0015” (.038
mm) feeler guage cannot be inserted between the
differential case flange and the ring gear backface. See
Figure 14.
NOTE: Ring gear and pinion must be replaced as a match set
only.
FFFFFigur igur igur igur igure 1 e 1 e 1 e 1 e 14 4 4 4 4
22
2 . Install bearing cones to differential case halves.
Place bearing cups on cones during remainder of
assembly to prevent damage to bearings.
NOTE: Use of press and proper adapter is required to
eliminate possible damage to bearings.
3 . Apply a small amount of lubricant to all mating surfaces.
This will keep thrust washers in place during assembly and
provide initial lubrication.
4 . Place thrust washer and side gear in flange half of
differential case. Dimples in thrust washers go against
side gear.
5 . Assemble differential pinions and thrust washers on cross
shaft. Place assembly in flange half differential case.
6 . Place remaining side gear and thrust washers in position
on differential pinions.
7. Assemble case halves, making sure that both match marks
are lined up.
8 . Install differential case bolts. Tighten alternately and
evenly. (See Torque Specifications Chart, Pgs. 33-34)
Differential Assembly Complete
Differential Bearing Cup
Cotter Pin
Adjusting Ring
Lock
Differential Bearing
Cap Washer
Differential Case Nut
(160-180 Lb-Ft)
(218-245 N-m)
Differential Case Cap Half
Differential Bearing Cap Bolt
(295-340 Lb-Ft)
(370-435 N-m)
Differential Pinion Mate
Differential Pinion Mate Thrust Washer
Differential Cross Shaft
Differential Side Gear
Ring Gear
Differential Case Flange Half
Adjusting Ring
Differential Bearing Cone
Differential Bearing Cap
Differential Gear Thrust Washer
Ring Gear Rivet
(40-45 tons)
(41-50 metric tonnes)
Oil Scoop
Oil Scoop Bolt
(7-9Lb-Ft)
(9-12 N-m)
Differential Case Bolt
(160-180 Lb-Ft)
(218-245 N-m)
Ring Gear Bolt Kit
(300-320 Lb-Ft)
(406-434 N-m)
(Optional)
IMPORTANT: Torque
specifications, shown on illustration,
apply only to J Model. See Page 33-
34 for W Model torque specifications.