Pinion assembly – Spicer Tandem Drive Axles Service Manual J340-S, J380-S, J400-S, W460-S User Manual

Page 19

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bores See Figure 10. This is necessary for proper pinion
position.

7.

Press inner pinion bearing onto pinion stem.

8 . Place selective preload spacer that was removed during

disassembly onto pinion.

9 . Place pinion cage onto pinion inner bearing.
10 .Install outer pinion bearing cone onto pinion.
11. Inspect rear rear carrier end yoke seal surface for grooves

caused by lip of seal. If grooves can be detected with
fingernail, it should be replaced.

12. Install gear onto pinion of forward rear carrier. Place

assembly in a hydraulic press and seat gear on spline.
Torque castillated nut to 600 Lb-Ft Min. If hole in pinion

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igure 1

e 1

e 1

e 1

e 10

0

0

0

0

1 . Press inner pinion bearing cone onto the pinion.
2 . Press roller bearing onto nose of pinion.

NOTE: Bearing must be installed with radius in bearing bore
toward pinion.

3 . Stake roller bearing in nine places (See illustration

below)

, using a center punch or equivalent tool. This

operation will move gear shaft material outward into
bearing chamfer.

PINION ASSEMBLY

17

NOTE: Make sure all cage bores are free of nicks, dirt, or any
other contaminants.

4 . Install inner pinion bearing cup into pinion cage.
5 . Install outer pinion bearing cup into pinion cage.
6 . Use a feeler guage or shim stock .0015 in. (.0381mm) to

ensure bearing cups are completely seated in bearing

Used in place of
pinion driven gear,
castillated pinion
nut,and roll pin, that
are used on the
forward rear axle
carrier assembly.

REAR REAR AXLE COMPONENTS

Washer

Pinion Nut

End Yoke

Pinion Seal

Carrier Housing

Pinion Pilot Bearing

Pinion

Inner Pinion Bearing Cone

Inner Pinion Bearing Cup

Pinion Bearing Cage

Outer Pinion Bearing Cup

Outer Pinion Bearing Cone

Pinion Bearing Cage Bolt

(115-135 Lb-Ft)

(156-183 N-m)

Bearing Preload Spacer (Selective)

Carrier Mounting Bolt
(240-260 Lb-Ft)
(325-352 N-m)

Castillated Pinion Nut
(600- Lb-Ft)Min.
(217 N-m) Min.

Pinion Position Shim(s)

Pinion Driven Gear

ID Tag

IMPORTANT: Torque
specifications, shown on illustration,
apply only to J Model. See Page 33-
34 for W Model torque specifications.

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