Chevrolet Cobalt Service & Repair Manual: Differential, Overhaul
Disassembly
| When pinion gears are removed,
place final drive carrier into a clean transmission oil pan in order to
prevent losing needle bearings. |
| 1. |
Remove final drive sun gear (115),
Fig. 1. |
| 2. |
Remove differential pinion shaft retaining
pin (704) using a pin punch as illustrated in Fig. 2. |
| 3. |
Remove differential pinion shaft (703),
Fig. 3. |
| 4. |
Remove differential pinion gears (707),
thrust washers (706), differential side gears (709), and thrust
washers (708), Fig. 4. |
| 5. |
Inspect final drive sun gear to carrier
thrust bearing (700), Fig. 5. |
| 6. |
Inspect all pinions for excessive wear
or bearing noise. |
|
Assembly
| 1. |
Assemble thrust washers (708) onto
differential side gears (709), Fig. 4. |
| 2. |
Install differential side gears into
final drive carrier (702), Fig. 4. |
| 3. |
Assemble thrust washers (706) onto
pinion gears (707). Retain thrust washers with a suitable lubricant,
Fig. 4. |
| 4. |
With thrust washers (706) attached,
install pinion gears (707) into final drive carrier (702), Fig.
4. |
| 5. |
Rotate pinion gears (707) into position,
and install pinion shaft (703) through final drive carrier through
pinion gears (707), Fig. 4. |
| 6. |
Position pinion shaft (703) in order
to allow installation of retaining pin, Fig. 4. |
| 7. |
Install retaining pin (704) through
final drive carrier (702) and through pinion shaft (703) in order
to retain pinion shaft (703), Fig. 4. |
|
Fig. 1 Sun gear replacement
Fig. 2 Pinion shaft retaining pin removal
Fig. 3 Differential pinion shaft replacement
Fig. 4 Differential thrust washers & gears
Fig. 5 Gear to carrier thrust bearing inspection
1.
Remove the ten differential ring gear
bolts from the differential case. Discard the bolts, Fig.
1.
2.
Remove the differential ri ...
A visual inspection must always
be performed to confirm the presence of aftermarket components, potential
collision damage, or areas of concern.
A rear-axle oil leak is eas ...
Chevrolet Cobalt Owners Manual
Chevrolet Cobalt Service Manual
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Drive Axle Assembly Leak, Inspection