12. Use the soft
face hammer
to tap the ring
gear differential
housing in place
on the new diff
locker (L)
and bolt them
together again,
tightening in a
cross pattern.
Use Locktite
blue on the
bolts.
(N)
(L)
(O)
14. With a helper, put the ring-gear/new diff locker assembly back into position in the differential case
(N) and turn the loose adjuster nut until it's snug and holding the assembly in place (O).
13. Put some
grease on the
inside of the
roller bearing
races, then
press the bearings onto the
diff locker with
a bearing press.
(M)
(P)
(M)
16. Once you are
satisfied with
the backlash
measurement,
reinstall the
bearing caps and
bearing cap clips
(Q) and put
the transmission
back in park.
15. Reconfigure your dial caliper to measure the backlash on the marked spots on the ring
gear. Adjust the torque on the adjuster nut until you have the same backlash as you started
with in the same places on the marked teeth. (Remember: The truck must be in neutral to
check the backlash.) (P)
(R)
17. Put a bead of silicone around the diff cover mating surface, taking care not to get any
silicone on the two holes that channel oil to the axles (R). Then reinstall the diff cover.
(Q)
18. Tighten the diff cover bolts and refill the differential with the appropriate grade oil.
Note that Eaton prefers you do not use synthetic oil; instead, use a petroleum- or mineral
oil-based lube for this application.
propickupmag.com PROPICKUP 49
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1/11/13 10:24 AM