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FRONT WHEEL DRIVE
4C-1
SECTION 4C
FRONT AXLE DIFFERENTIAL
(4-WHEEL DRIVE)
CONTENTS
F ront Axle D ifferential...................................................... ..4C-1
Differential C a s e ............................................................... ..4C-1
R em oval...............................................................................4C-1
Oil Seal R eplacem ent..................................................... ..4C-1
D isassem bly...................................................................... ..4C-1
Drive P in io n ....................................................................... ..4C-1
R em oval...............................................................................4C-1
In sp ectio n ......................................................................... ..4C-4
Differential C a s e ............................................................... ..4C-4
R eassem bly....................................................................... ..4C-4
Drive P in io n ......................................................................... .4C-5
Installation and A dju stm en t........................................... 4C-5
Differential C a s e ...................................................................4C-6
Preload and A djustm ent...................................................4C-6
Installation............................................................................4C-6
G ear Tooth C ontact Pattern C heck.................................4C-7
G ear Tooth N o m en clatu re ............................................. .4C-7
T e s t......................................................................................4C-7
A djustm ents........................................................................ .4C-7
Special T o o ls ........................................................................ .4C-9
FRONT AXLE DIFFERENTIAL
Differential Case
Removal (Fig. 4C-1)
1. If front axle assembly is removed from vehicle, m ount
assembly in suitable holding fixutre and remove axle shafts
as outlined in Axle Shaft Removal, T ruck Service Manual.
2. Remove cover attaching bolts and lock washers and
the metal tag secured by one of the attaching bolts. Remove
cover and gasket.
NOTE:
T he tag shows the num ber of teeth on pinion
and drive gear.
3. Remove differential side bearing caps, making sure
Fig. 4C-1~Spreading Case W ith J -5 231-01
they are m arked for reassembly in the same position.
4. Position Spreader Tool J-5231-01 so the two dowels
on tool fit into recesses in carrier, install two hold down bolts
and install a dial indicator at one end of opening in carrier
to indicate width of opening.
5. Expand spreader tool to spread carrier a m aximum
of .020".
CAUTION:
Do not attemtp to remove differential
without using the spreader tool. Do not expand
carrier more than .020in. or it may be damaged and
take a permanent set.
6. Remove dial indicator and, using a pry bar, lift out
differential assembly. Remove and tag bearing cups so they
may be reinstalled in their original positions. Relieve pressure
on spreader tool and remove tool.
Oil Seal Replacement
The axle shaft inner oil seals are located just outboard
of the differential bearings, item 28, Fig. 4C-2. They can be
replaced only after the differential is removed from the
carrier, using tool J-25111.
Disassembly
1. Remove bearing cups from differential case and
identify for reassembly.
2. Remove bearing cones from case, using puller J-22888
and correct plug (fig. 4C-4) and remove shims from case.
Identify all parts so they may be reassembled in their original
location.
3. D rive the pinion shaft lock pin out of case.
4. Remove ring gear bolts from case and separate ring
gear from case.
5. Remove pinion shaft, pinions, side gears and thrust
washers from case.
DRIVE PINION
Removal
1. Using Holding Bar J-8614-1, attached to pinion shaft
flange, remove self-locking nut and washer from pinion shaft.
2. Install Tool J-8614-2, and 3 into holding bar as shown
in Figure 4C-5 and remove flange from drive pinion. Remove
DIAL
INDICATOR
Содержание 1977 10 Series
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Страница 65: ...STEERING 3B 23 Fig 3B 65 M easure Back and Remark Housing Fig 3B 67 Tighten Lock Nut...
Страница 86: ...4B 14 OVERHAUL MANUAL Fig 4B 28 Gear Teeth C ontact Pattern Check...
Страница 125: ...REAR AXLE DIFFERENTIAL 4B 53 Fig 18E Gear Teeth Contact Pattern Check...
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Страница 164: ...4C 8 OVERHAUL MANUAL Fig 4C 12 Gear Tooth Pattern Contact Pattern...
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Страница 322: ...400 7A 2 OVERHAUL MANUAL Fig 7A 1C Side Cross Section Typical...
Страница 444: ...7B 64 OVERHAUL MANUAL Fig 7B 11S M od el 2 03 Transfer Case Exploded V iew...
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