Chevrolet 70 1969 Series, Shop Manual

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REAR AXLE 4-43
INTER-AXLE DIFFERENTIAL
ASSEMBLY
INTER-AXLE
DIFFERENTIAL COVER
DRIVE GEAR
ADAPTER CASE GEAR
nit
-.
ov
Figure 2 — In te r-A x ie Differential Sh ift Units
2. A t inside of case, through shift housing opening, re­
m ove nut, button, lever, cup, and spring (fig. 2).
NOTE: Stud is pressed into carrier and it may
be necessary to press it out slightly in order to
remove shift lever.
en two at top and leave installed to prevent carrier
from falling.
2. Break carrier loose from axle housing by tapping car­
rier with rawhide mallet.
3. S upport carrier on roller jac k ; then remove top nuts
and lock washers, then work carrier free, using puller
screws in holes when provided. A small pinch bar
m ay be used to keep carrier straight in housing bore
while carrier is withdrawn, provided end of bar is
rounded to prevent dam age to carrier flange.
4. M oun t differential carrier assem bly in suitable repair
stand (fig. 3) which will facilitate service operations.
INTER-AXLE DIFFERENTIAL REMOVAL
AND DISASSEMBLY (FORWARD AXLE)
1. Hold propeller shaft yoke with a holding bar (J-3453)
while nut is being removed.
2. Remove cap screws attaching inter-axle differential
cover to adapter case. Separate cover from case (fig.
4).
3. Use arbo r press to press inter-axle differential assem ­
bly from cover (fig. 5). Do not dam age assembly, due
to being dropped during pressing operating.
4. If original m atch m arks on two halves of differential
case are not clear, rem ark with prick punch for ref­
erence at reassembly.
5. C ut lock wire, then remove bolts holding two cases
together.
THROUGH SHAFT REMOVAL (FORWARD AXLE)
1. H old propeller shaft yoke at rear of thru-shaft with
holding bar (J-3453) while nut is being loosened.
2. R em ove cap screws and lock washers attaching thru-
shaft rear bearing and oil seal cage to axle housing
bowl.
3. T ap cage lightly with soft ham m er to loosen cage
from housing bowl.
4. As thru-shaft and cage assem bly is being pulled rear­
ward, grasp the sliding clutch gear through shift hous­
ing opening and rem ove gear from end of shaft.
THROUGH SHAFT DISASSEMBLY
(FORWARD AXLE)
1. R em ove yoke nut, then remove yoke with suitable
available puller.
2. Press thru-shaft from cage assembly, using suitable
support at inner race of bearing.
3. Remove snap ring from cage, then tap bearing out of
cage from seal end, using care not to dam age seal.
4. If seal is to be replaced, remove with punch, other­
wise do not disturb.
DIFFERENTIAL CARRIER REMOVAL
1. Rem ove all differential carrier to axle housing stud
nuts and lock washers, except the two near top. Loos-
Figure 3 — Differential C arrier A sse m b ly M o u n t e d in R e p a ir S t a n d
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L