How to remove and install a transfer case on GMC Sierra?

To remove the transfer case, start by disconnecting the cable from the negative terminal of the battery and putting the transfer case in the 2WD High position (if applicable). Then, raise the vehicle and support it securely on jackstands, remove the stone shields (if equipped), and drain the transfer case lubricant. Next, remove the front and rear driveshafts, unplug all electrical connectors, detach the vent hose from the top of the transfer case, and disconnect the shift linkage (if applicable). Raise the transmission enough to remove the crossmember, support the transfer case with a jack, and remove the transfer case mounting nuts. Finally, move the transfer case and jack toward the rear of the vehicle until it's clear of the transmission. To install the transfer case, replace the gasket with a new one and tighten the transmission-to-transfer case nuts to the torque specifications. On manually shifted models, be sure to adjust the transfer case shift linkage.

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110 Transfer Cases found

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GMC Sierra Case Transfer
Part Number: 23253658
$199.73 MSRP: $313.41
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Product Specifications
- Other Name: Case Assembly - Transfer
- Position: Rear
- Replaces: 19133141
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2019 GMC Sierra | 1 TON CREW CAB, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 1 TON 137.0, CREW CAB 1/2 TON, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.6L Diesel
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GMC Sierra Case Transfer
Part Number: 23253659
$153.36 MSRP: $311.94
You Save: $158.58 (51%)
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Product Specifications
- Other Name: Case Assembly - Transfer
- Position: Rear
- Replaces: 19169067
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2019 GMC Sierra | 1 TON CREW CAB, 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 1 TON 137.0, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel
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GMC Sierra Case Transfer
Part Number: 12474949
$676.48 MSRP: $1134.23
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Product Specifications
- Other Name: Transfer Case
- Position: Rear
- Replaces: 12547663
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2007 GMC Sierra | 1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
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GMC Sierra Case Transfer
Part Number: 12478092
$528.65 MSRP: $833.30
You Save: $304.65 (37%)
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Product Specifications
- Other Name: Case, Transfer Case
- Position: Rear
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2007 GMC Sierra | 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB | 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
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GMC Sierra Transfer Case
Part Number: 24246762
$3282.95 MSRP: $3687.03
You Save: $404.08 (11%)
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Product Specifications
- Other Name: Case, Transfer Case; Transfer Case
- Replaces: 12578118, 24238887, 24243314
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2013 GMC Sierra | CREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.2L Flex
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GMC Sierra Case Transfer
Part Number: 23254567
$285.77 MSRP: $472.97
You Save: $187.20 (40%)
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Product Specifications
- Other Name: Case Assembly - Transfer
- Position: Rear
- Replaces: 23252401
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2019 GMC Sierra | 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 2500 LONG BOX, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX | 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel
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GMC Sierra Case Transfer
Part Number: 19132934
$323.41 MSRP: $535.27
You Save: $211.86 (40%)
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Product Specifications
- Other Name: Case, Transfer Case
- Position: Front
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2013 GMC Sierra | CREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.2L Flex
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GMC Sierra Transfer Case
Part Number: 85580976
$1270.46 MSRP: $1415.06
You Save: $144.60 (11%)
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Product Specifications
- Other Name: Case, Transfer Case; Transfer Case
- Replaced by: 85843420
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2024 GMC Sierra | CREW CAB 5'8" BOX 1/2 TON, Crew Cab 6'6" Box 1/2 Ton, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 4 Cyl 2.7L, 6 Cyl 3.0L Diesel, 6 CYL 3.0L Diesel, 6 Cyl 4.3L, 8 Cyl 5.3L, 8 Cyl 6.2L, 8 Cyl 6.6L, 8 Cyl 6.6L Diesel, 8 Cyl5.3L
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GMC Sierra Transfer Case
Part Number: 84467434
$2209.94 MSRP: $2474.89
You Save: $264.95 (11%)
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Product Specifications
- Other Name: Case, Transfer Case; Transfer Case
- Replaced by: 85675346
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 GMC Sierra | 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON | 6 Cyl 4.3L, 8 Cyl 5.3L
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GMC Sierra Transfer Case
Part Number: 24228420
$3130.56 MSRP: $3508.83
You Save: $378.27 (11%)
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Product Specifications
- Other Name: Case, Transfer Case; Transfer Case
- Replaces: 24239524
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2007 GMC Sierra | 1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L
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GMC Sierra Case Transfer
Part Number: 85580977
$1210.21 MSRP: $1347.38
You Save: $137.17 (11%)
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Product Specifications
- Other Name: Case, Transfer Case; Transfer Case
- Replaced by: 85843421
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2024 GMC Sierra | CREW CAB 5'8" BOX 1/2 TON, Crew Cab 6'6" Box 1/2 Ton, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 4 Cyl 2.7L, 6 Cyl 3.0L Diesel, 6 CYL 3.0L Diesel, 6 Cyl 4.3L, 8 Cyl 5.3L, 8 Cyl 6.2L, 8 Cyl 6.6L, 8 Cyl 6.6L Diesel, 8 Cyl5.3L
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GMC Sierra Transfer Case
Part Number: 87842230
$2548.86
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Case, Transfer Case; Transfer Case
- Replaces: 84153003, 84260083, 84377716, 84467437, 84605821
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 GMC Sierra | 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON | 8 Cyl 5.3L, 8 Cyl 6.2L
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GMC Sierra Case Transfer
Part Number: 19125975
$3205.41 MSRP: $3592.89
You Save: $387.48 (11%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Case, Transfer Case
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 GMC Sierra | 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 2500 LONG BOX, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX | 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel
- 2015 GMC Sierra | 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 2500 LONG BOX, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX | 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel
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GMC Sierra Transfer Case
Part Number: 85580975
$1171.47 MSRP: $1303.86
You Save: $132.39 (11%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Case, Transfer Case; Transfer Case
- Replaced by: 85843419
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2024 GMC Sierra | CREW CAB 5'8" BOX 1/2 TON, Crew Cab 6'6" Box 1/2 Ton, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 4 Cyl 2.7L, 6 Cyl 3.0L Diesel, 6 CYL 3.0L Diesel, 6 Cyl 4.3L, 8 Cyl 5.3L, 8 Cyl 6.2L, 8 Cyl 6.6L, 8 Cyl 6.6L Diesel, 8 Cyl5.3L
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GMC Sierra Case Transfer
Part Number: 87842224
$2053.83 MSRP: $2299.56
You Save: $245.73 (11%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Case, Transfer Case
- Replaced by: 85675344
- Replaces: 24265291, 84504824, 84619036, 23311904, 23240766, 84056115, 84308640
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2019 GMC Sierra | 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 2500 LONG BOX, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX | 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel
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GMC Sierra Transfer Case
Part Number: 24228435
$2333.14 MSRP: $2613.25
You Save: $280.11 (11%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Case, Transfer Case; Transfer Case
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2007 GMC Sierra | 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 REGULAR CAB, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB | 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
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GMC Sierra Case Transfer
Part Number: 19125667
$3398.35 MSRP: $3809.58
You Save: $411.23 (11%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Case, Transfer Case
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2015 GMC Sierra | 1 TON CREW CAB, 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 1 TON 137.0, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel
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GMC Sierra Case Transfer
Part Number: 12473226
Product Specifications
- Other Name: Case, Transfer Case
- Position: Rear
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2007 GMC Sierra | 1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB, CREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
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GMC Sierra Case Transfer
Part Number: 87842231
$2825.14
Product Specifications
- Other Name: Case, Transfer Case
- Replaces: 23164254, 84109398, 84260086, 84007378, 84346721, 84153006, 84467440, 84377719, 23311899, 84605824
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2019 GMC Sierra | 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON | 8 Cyl 5.3L, 8 Cyl 6.2L
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GMC Sierra Transfer Case
Part Number: 87842228
$2553.06
Product Specifications
- Other Name: Case, Transfer Case; Transfer Case
- Replaces: 23188340, 23164314, 84109394, 84377715, 24250805, 24256217, 24256472, 23143114, 84153002, 24239189, 24261514, 24262510, 24250861, 23311900, 84605819, 84467435, 24252679
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 GMC Sierra | 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON | 6 Cyl 4.3L, 8 Cyl 5.3L, 8 Cyl 6.2L

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GMC Sierra Transfer Case

GMC Sierra Transfer Case allows the truck to transmit engine torque to both front and rear axles. This enables drivers to switch confidently between city pavement and dirt trails. The unit bolts to the transmission. Inside the Transfer Case are gears or a robust chain route that spin through driveshafts to each differential. Two major styles have emerged through the years. Part-time Transfer Cases suit classic off-road focused GMC pickups, which give the driver the option of manually selecting either 2WD for dry roads or 4WD High and 4WD Low for either slick mud or ice or slow rock crawling, where the low range multiplies the torque in tight spots. Full-time or AWD oriented setups come on some modern Sierra models and add a center differential or viscous coupling that automatically balances the difference in speed between the axles to keep the steering smooth on pavement while still shuffling power when the wheels are slipping. Early trucks had a floor lever that was connected mechanically to the Transfer Case, while newer dashboards have an electric switch that operates a motor inside the Transfer Case to quickly engage the unit on the go. Ignoring clunks or hard shifts can indicate chain or gear wear inside the Transfer Case. Prompt attention helps keep every GMC Sierra ready for the road.

Each OEM GMC Sierra Transfer Case we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

GMC Sierra Transfer Case Parts Questions & Experts Answers

Case Transfer
23253659
Q:
How to remove and install a transfer case on GMC Sierra?
Posted by Evhenyi P.
A:
To remove the transfer case, start by disconnecting the cable from the negative terminal of the battery and putting the transfer case in the 2WD High position (if applicable). Then, raise the vehicle and support it securely on jackstands, remove the stone shields (if equipped), and drain the transfer case lubricant. Next, remove the front and rear driveshafts, unplug all electrical connectors, detach the vent hose from the top of the transfer case, and disconnect the shift linkage (if applicable). Raise the transmission enough to remove the crossmember, support the transfer case with a jack, and remove the transfer case mounting nuts. Finally, move the transfer case and jack toward the rear of the vehicle until it's clear of the transmission. To install the transfer case, replace the gasket with a new one and tighten the transmission-to-transfer case nuts to the torque specifications. On manually shifted models, be sure to adjust the transfer case shift linkage.
Answered by GM Parts Specialist Nicholas / Jan 23, 2025