How to disassemble the differential carrier assembly on Buick Rainier?

In order to disassemble the Differential carrier assembly, first remove the drain from the axle and drain the axle lubricant, check the oil and case for metal chips to identify where the problems are. Use an inch-pound torque wrench to measure the rotating torque of the pinion and Differential case. Start the disassembly process by installing the j 29369-1/ j 02619-1/ to the inboard side seal and remove the seal by pulling the j 02619-1. Repeating the same process for the outboard side seal using the j 29369-2 and ja 02619-1. Then unbolt the half for the Differential carrier and take the halves off to get to the Differential case assembly. Remove the left side Differential bearing adjuster using the tool j 42213 (Adjuster Sleeve Socket) labeling it, followed by the removal of the left side Differential bearing cup. Do the same for the right side with j 45224 (Side Bearing Adjustment Wrench) to unbolt the right side of the Differential bearing adjuster and cup. Take the rotating torque of the drive pinion and note it down. Attach the j 8614-01 (Flange and Pulley Holding Tool) unto the pinion yoke and unfasten the pinion nut while gripping it. Remove the pinion yoke, washer, and the drive pinion using the j 45234, (Pinion Remover). Carefully remove the dust deflator from the pinion yoke and pinion oil seal along with the outer Pinion Bearing incident to the removal. First, install the j 22912-01 (Split-Plate Bearing Puller) between the Pinion Bearing and pinion gear and remove the inner Pinion Bearing using the j 22912-01 and h bundle hydraulic press. Take out the pinion gear selectable shim and install the j 45228-4 (Pinion Bearing Cup Remover/Installer) to the Pinion Bearing cup. Remove the outer Pinion Bearing cup with the help of the j 45228-1 and j 45228-5 by turning the latter clockwise. Lastly install the j 45228-4 on the inner Pinion Bearing cup and with the help of j 45228-1 and j 45228-5 to remove the outer Pinion Bearing cup rotating the j45228-5 clockwise.

How to service and repair the differential for front-wheel-drive on Buick Rendezvous?

A technician should start differential maintenance on front-wheel-drive vehicles by removing the case extension housing. Check the differential carrier position which shows the output shaft end through its visibility when the differential pinion shaft (701) faces horizontal alignment. Place the Axle Removal Wedge (J 42562) between the output shaft's end and the differential pinion shaft. Strike the end of the axle removal tool with a hammer until it compresses the output shaft compression ring (512) then drives the output shaft through the differential side gear. Remove the differential carrier (700) then unscrew the output shaft's compression ring (512) with snap ring pliers. Start by removing the adhered sun gear thrust bearing (698) off the sun gear of the differential carrier (697) before proceeding to extract the Park Gear (696), then the internal gear thrust bearing (695) off the differential carrier, followed by sun gear shaft (689). Review the condition of sun gear shaft (689). Installation starts with placing the sun gear thrust bearing (698) with differential carrier sun gear (697) and park gear (696) and internal gear thrust bearing (695) alongside sun gear shaft (689) into the differential carrier (700). Afterward, install the differential carrier into the case and replace the case extension housing.

OEM Buick Differential

Front Differential

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33 Differentials found

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Buick Differential Case Part Number: 26033478
$346.88 MSRP: $550.75
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Product Specifications
- Other Name: Case, Differential (Ring Gear And Pinion); Differential; Front/Rear Differential; Side With Pinion; Case, Ring Gear And Pinion.
Fits the following Buick Models:
- Roadmaster | 1994-1996 | Base, Collector's Edition, Estate Wagon, Estate Wagon Collector's Edition, Limited, Limited Collector's Edition | 8 Cyl 5.7 L GAS
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Buick Differential Assembly Part Number: 84929902
$2673.85 MSRP: $3441.24
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Product Specifications
- Other Name: Carrier, With Cap; Differential; Carrier, Final Drive
- Replaced by: 86588080
Fits the following Buick Models:
- Envision | 2021-2023 | Avenir, Essence, Preferred | 4 Cyl 2.0 L GAS
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Buick Differential Assembly Part Number: 84894045
$1534.48 MSRP: $1974.87
You Save: $440.39 (23%)
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Product Specifications
- Other Name: Carrier, With Cap; Carrier
- Replaced by: 85755639
Fits the following Buick Models:
- Regal Sportback | 2019-2020 | Avenir, Base, Essence, GS, Preferred, Preferred II | 4 Cyl 2.0 L GAS, 6 Cyl 3.6 L GAS
- Regal TourX | 2019-2020 | Base, Essence, Preferred | 4 Cyl 2.0 L GAS
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Buick Differential Assembly Part Number: 85660250
$2527.57 MSRP: $3252.99
You Save: $725.42 (23%)
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Product Specifications
- Other Name: Carrier, With Cap; Carrier; Carrier, Final Drive
- Replaced by: 85733997
- Replaces: 84671573, 84671577, 86800565
Fits the following Buick Models:
- Enclave | 2018-2024 | Avenir, Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick Carrier Assembly, Rear Part Number: 25822455
$1523.22 MSRP: $1960.39
You Save: $437.17 (23%)
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Product Specifications
- Other Name: Module Assembly-Rear Wheel Drive; Differential; Carrier
- Position: Rear
- Replaces: 25792543
Fits the following Buick Models:
- Enclave | 2008-2009 | CX, CXL | 6 Cyl 3.6 L GAS
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Buick Differential Part Number: 84226985
$2217.06 MSRP: $2853.36
You Save: $636.30 (23%)
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Product Specifications
- Other Name: Differential Assembly-Limited Slip
Fits the following Buick Models:
- Envision | 2016 | Premium | 4 Cyl 2.0 L GAS
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Buick Differential Assembly Part Number: 42769813
$1769.74 MSRP: $2277.66
You Save: $507.92 (23%)
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Product Specifications
- Other Name: Carrier, With Cap; Differential; Carrier; Carrier, Final Drive
- Replaces: 42745857, 42485929, 42550055, 42463368, 42695299
Fits the following Buick Models:
- Encore | 2016-2022 | Base, Convenience, Essence, Leather, Preferred, Preferred II, Premium, Sport Touring | 4 Cyl 1.4 L GAS
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Buick Differential Part Number: 84226984
$2228.88 MSRP: $2868.57
You Save: $639.69 (23%)
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Product Specifications
- Other Name: Differential, Differential Side With Pinion
Fits the following Buick Models:
- Envision | 2017 | Base, Essence, Preferred, Premium | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
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Buick Differential Assembly Part Number: 85592577
$2388.43 MSRP: $3073.91
You Save: $685.48 (23%)
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Product Specifications
- Other Name: Carrier, With Cap; Carrier
- Replaced by: 85660255
Fits the following Buick Models:
- Enclave | 2018-2021 | Avenir, Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick Differential Assembly Part Number: 42789511
$1420.18 MSRP: $1827.77
You Save: $407.59 (23%)
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Product Specifications
- Other Name: Differential Assembly-.; Differential
- Replaced by: 42833999
Fits the following Buick Models:
- Encore GX | 2020-2024 | Avenir, Essence, Preferred, Select, Sport Touring | 3 Cyl 1.2 L GAS, 3 Cyl 1.3 L GAS
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Buick Transfer Case Part Number: 42469677
$923.04 MSRP: $1039.46
You Save: $116.42 (12%)
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Product Specifications
- Other Name: Case Assembly-Power Transfer U; Case, Transfer Case; Case
- Replaces: 23206372, 24263338, 42419030
Fits the following Buick Models:
- Encore | 2013-2020 | Base, Convenience, Essence, Leather, Preferred, Preferred II, Premium, Sport Touring | 4 Cyl 1.4 L GAS
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Buick Differential Case Part Number: 19256751
Product Specifications
- Other Name: Case, Front/Rear Differential And Planet; Case; Case,; Differential
- Position: Front
- Replaces: 26046002
Fits the following Buick Models:
- Rainier | 2004-2007 | CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
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Buick Differential Case Part Number: 12479021
Product Specifications
- Other Name: Case, Differential (Ring Gear And Pinion); Case, Front/Rear Differential And Planet; Differential
- Position: Front and Rear
Fits the following Buick Models:
- Rainier | 2006-2007 | CXL | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
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Buick Carrier Case, Front Part Number: 19153444
Product Specifications
- Other Name: Carrier, Front Differential; Carrier Kit, Differential; Carrier Kit, Front Axle; Differential
- Position: Front
- Replaces: 12471610, 12471609, 12479079
Fits the following Buick Models:
- Rainier | 2004-2007 | CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
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Buick Differential Case Part Number: 12479123
Product Specifications
- Other Name: Differential; Differential, Front/Rear Differential And Planet; Differential, Differential Side With Pinion
Fits the following Buick Models:
- Rainier | 2006-2007 | CXL | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
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Buick Differential Assembly Part Number: 84163016
$3303.43 MSRP: $4251.51
You Save: $948.08 (23%)
Product Specifications
- Other Name: Carrier, With Cap; Differential; Carrier
- Replaces: 13320688, 22786610, 23221173, 22984782, 22821236, 22896610, 22823204, 22743432
Fits the following Buick Models:
- LaCrosse | 2010-2016 | Base, Convenience, CX, CXL, CXS, Leather, Premium, Sport Touring, Touring | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Regal | 2014-2017 | Base, GS, Premium, Sport Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick Differential Case Part Number: 26016804
Product Specifications
- Other Name: Case; Differential
Fits the following Buick Models:
- Roadmaster | 1992-1996 | Base, Collector's Edition, Estate Wagon, Estate Wagon Collector's Edition, Limited, Limited Collector's Edition | 8 Cyl 5.7 L GAS
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Buick Differential Case Part Number: 26026250
Product Specifications
- Other Name: Case-Differential; Case; Case, Front/Rear Differential And Planet; Case,; Differential
Fits the following Buick Models:
- Roadmaster | 1992-1993 | Base, Estate Wagon, Limited | 8 Cyl 5.7 L GAS
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Buick Differential Case Part Number: 26010481
Product Specifications
- Other Name: Case, Differential (Ring Gear And Pinion); Case, Front/Rear Differential And Planet; Case,; Differential
Fits the following Buick Models:
- Electra | 1984-1985 | Estate Wagon, Limited, Park Avenue | 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- LeSabre | 1984-1985 | Collector's Edition, Custom, Estate Wagon, Limited | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- Regal | 1984-1987 | Base, GNX, Grand National, Limited, T-Type | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L DIESEL, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- Roadmaster | 1992-1996 | Base, Collector's Edition, Estate Wagon, Estate Wagon Collector's Edition, Limited, Limited Collector's Edition | 8 Cyl 5.7 L GAS
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Buick Differential Case Part Number: 12369496
Product Specifications
- Other Name: Case, Differential (Ring Gear And Pinion); Case,; Differential
Fits the following Buick Models:
- Roadmaster | 1991-1993 | Base, Estate Wagon, Limited | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS

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Buick Differential

Choose OEM Differential, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Buick's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsGiant.com, you'll find it easy to get top-quality OEM Buick Differential. You can shop at highly competitive prices and protect your budget. All our genuine Buick parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Buick Differential Parts and Q&A

Differential Case, Front Rear
19244836
Q: How to disassemble the differential carrier assembly on Buick Rainier?
A:
In order to disassemble the Differential carrier assembly, first remove the drain from the axle and drain the axle lubricant, check the oil and case for metal chips to identify where the problems are. Use an inch-pound torque wrench to measure the rotating torque of the pinion and Differential case. Start the disassembly process by installing the j 29369-1/ j 02619-1/ to the inboard side seal and remove the seal by pulling the j 02619-1. Repeating the same process for the outboard side seal using the j 29369-2 and ja 02619-1. Then unbolt the half for the Differential carrier and take the halves off to get to the Differential case assembly. Remove the left side Differential bearing adjuster using the tool j 42213 (Adjuster Sleeve Socket) labeling it, followed by the removal of the left side Differential bearing cup. Do the same for the right side with j 45224 (Side Bearing Adjustment Wrench) to unbolt the right side of the Differential bearing adjuster and cup. Take the rotating torque of the drive pinion and note it down. Attach the j 8614-01 (Flange and Pulley Holding Tool) unto the pinion yoke and unfasten the pinion nut while gripping it. Remove the pinion yoke, washer, and the drive pinion using the j 45234, (Pinion Remover). Carefully remove the dust deflator from the pinion yoke and pinion oil seal along with the outer Pinion Bearing incident to the removal. First, install the j 22912-01 (Split-Plate Bearing Puller) between the Pinion Bearing and pinion gear and remove the inner Pinion Bearing using the j 22912-01 and h bundle hydraulic press. Take out the pinion gear selectable shim and install the j 45228-4 (Pinion Bearing Cup Remover/Installer) to the Pinion Bearing cup. Remove the outer Pinion Bearing cup with the help of the j 45228-1 and j 45228-5 by turning the latter clockwise. Lastly install the j 45228-4 on the inner Pinion Bearing cup and with the help of j 45228-1 and j 45228-5 to remove the outer Pinion Bearing cup rotating the j45228-5 clockwise.
Transfer Case
88894200
Q: How to service and repair the differential for front-wheel-drive on Buick Rendezvous?
A:
A technician should start differential maintenance on front-wheel-drive vehicles by removing the case extension housing. Check the differential carrier position which shows the output shaft end through its visibility when the differential pinion shaft (701) faces horizontal alignment. Place the Axle Removal Wedge (J 42562) between the output shaft's end and the differential pinion shaft. Strike the end of the axle removal tool with a hammer until it compresses the output shaft compression ring (512) then drives the output shaft through the differential side gear. Remove the differential carrier (700) then unscrew the output shaft's compression ring (512) with snap ring pliers. Start by removing the adhered sun gear thrust bearing (698) off the sun gear of the differential carrier (697) before proceeding to extract the Park Gear (696), then the internal gear thrust bearing (695) off the differential carrier, followed by sun gear shaft (689). Review the condition of sun gear shaft (689). Installation starts with placing the sun gear thrust bearing (698) with differential carrier sun gear (697) and park gear (696) and internal gear thrust bearing (695) alongside sun gear shaft (689) into the differential carrier (700). Afterward, install the differential carrier into the case and replace the case extension housing.