Buick Regal: Differential Clutch Oil Inspection
1. Raise and support the vehicle.
2. Clean the area around the rear axle fill plug.
3. Place a drain pan under the vehicle.
4.
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Differential Clutch Cover Plug(1) - Remove.
5. Rear Axle Housing Filler Plug Gasket(2) - Remove.
6. Check the fluid level. If necessary, fill the differential to the bottom of the fill plug hole with the recommended fluid.
CAUTION: Refer to Component Fastener Tightening Caution.
NOTE: Clean and inspect the filler plug gasket (2) and replace if necessary.
7. Rear Axle Housing Filler Plug Gasket(2) - Install.
8. Differential Clutch Cover Plug(1) - Install and tighten 25 N.m (18 lb ft).
9. Lower the vehicle.
DIFFERENTIAL OIL REPLACEMENT
Removal Procedure
1. Raise and support the vehicle.
2. Clean the area around the rear axle fill plug.
3. Place a drain pan under the vehicle.
4.
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Rear Axle Housing Drain Plug(1) - Remove.
5. Rear Axle Housing Filler Plug Gasket(2) - Remove.
6. Allow the oil to drain completely.
Installation Procedure
1.
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NOTE: Clean and inspect the drain plug gasket (2) and replace if necessary.
Rear Axle Housing Filler Plug Gasket(2) - Install.
CAUTION: Refer to Component Fastener Tightening Caution.
2. Rear Axle Housing Drain Plug(1) - Install and tighten 25 N.m (18 lb ft).
3.
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Rear Axle Housing Fill Plug(1) - Remove.
4. Rear Axle Housing Filler Plug Gasket(2) - Remove.
5. Check the fluid level. If necessary, fill the differential to the bottom of the fill plug hole with the recommended fluid.
NOTE: Clean and inspect the filler plug gasket (2) and replace if necessary.
6. Rear Axle Housing Filler Plug Gasket(2) - Install.
7. Rear Axle Housing Fill Plug(1) - Install and tighten 25 N.m (18 lb ft).
8. Lower the vehicle.
DIFFERENTIAL CLUTCH OIL REPLACEMENT
Removal Procedure
1. Raise and support the vehicle.
2. Clean the area around the rear axle fill plug.
3. Place a drain pan under the vehicle.
4.
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Differential Clutch Cover Plug(1) - Remove.
5. Rear Axle Housing Filler Plug Gasket(2) - Remove.
6. Allow the oil to drain completely.
Installation Procedure
1.
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NOTE: Clean and inspect the drain plug gasket (2) and replace if necessary.
Rear Axle Housing Filler Plug Gasket(2) - Install
CAUTION: Refer to Component Fastener Tightening Caution.
2. Differential Clutch Cover Plug(1) - Install and tighten 25 N.m (18 lb ft).
3.
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Differential Clutch Cover Plug(1) - Remove.
4. Rear Axle Housing Filler Plug Gasket(2) - Remove.
5. Check the fluid level. If necessary, fill the differential to the bottom of the fill plug hole with the recommended fluid.
NOTE: Clean and inspect the filler plug gasket (2) and replace if necessary.
6. Rear Axle Housing Filler Plug Gasket(2) - Install.
7. Differential Clutch Cover Plug(1) - Install and tighten 25 N.m (18 lb ft).
8. Perform the clutch system bleed procedure.
9. Lower the vehicle.
DIFFERENTIAL CARRIER BUSHING REPLACEMENT - FRONT
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Preliminary Procedure
1. Raise and support the vehicle.
2. Remove the propeller shaft.
3. Remove the exhaust system. Exhaust Muffler Replacement (2.0L LTG) Exhaust Muffler Replacement (3.6L LGX).
- Differential Carrier Bushing
Procedure
- Support the rear differential with a jack stand.
- Remove the electrical connector from the rear differential clutch control module. Rear Differential Clutch Control Module Replacement.
- Remove the front and rear differential mounting bolts. Differential Carrier Assembly Replacement.
- Lower the rear differential until there is enough room to remove the differential carrier bushing.
- Using the DT 49126 - 1 tool and the DT 49126 - 10 kit, remove the rear differential bushing.
- Position the NEW rear differential bushing with the beveled edges facing the housing (up).
- Using the DT 49126 - 2 tool and the DT 49126 - 10 kit, install the NEW rear differential bushing.
Special Tools
- DT 49126 - 1 Press Tool
- DT 49126 - 2 Press Tool
- DT 49126 - 10 Bushing Replacer Hardware Kit
Equivalent regional tools:Special Tools.
READ NEXT:
Differential Carrier Bushing Replacement - Rear
Tools Required
J-45725 Cradle Bushing Replacer
For equivalent regional tool, refer to Special Tools.
Removal Procedure
1. Raise and support the vehicle.
2. Remove the rear differential assembly.
3
Rear Axle Vent Replacement
Preliminary Procedure
1. Raise and support the vehicle.
2. Remove the Differential Carrier Assembly.
Rear Axle Vent
NOTE:
Use an appropriate tool to remove and install.
REAR AXLE HOUSING VENT
Differential Carrier Assembly Replacement
Removal Procedure
1. Raise and support the vehicle.
2. Differential Carrier Assembly - Drain.
3. Exhaust Muffler - Remove.
4. Propeller Shaft - Remove.
5. Parking Brake Actuator - Disconnect.
6.
SEE MORE:
Front Wheel Drive Half Shaft Replacement - Right Side (AWD)
Special Tools
DT-45859 Axle Remover
Equivalent regional tools:Special Tools
Removal Procedure
1. Raise and support the vehicle.
2. Remove the right front tire and wheel assembly.
3. With the aid of an assistant holding the brake pedal down, use a breaker bar
and the proper size socket to
loosen
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and
the road creates less traction or
grip, so drive carefully. Wet ice can
occur at about 0 ВєC (32 ВєF) when
freezing rain begins to fall. Avoid
driving on wet ice or in freezing rain
until roads can be treated.
For Slippery Road Driving:
