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Home >> Buick >> 2019 >> Regal Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Power Transfer Unit/Transfer Case - AAM >> Visual Identification >> Power Transfer Unit Case Disassembled View >> Power Transfer Unit Components
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Power Transfer Unit Components

Fig 1: Exploded View Of Power Transfer Unit Components
GM4621307Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
1 Power Transfer Unit Alignment Sleeve
2 Power Transfer Unit Face Seal - O-Ring
3 Power Transfer Unit Case
4 Power Transfer Unit Locating Pin [2x]
5 Power Transfer Unit Cover Housing Seal
6 Power Transfer Unit Input Shaft Bearing Race- Front
7 Power Transfer Unit Input Shaft Bearing- Front
8 Power Transfer Unit Input Shaft Seal- Front
9 Power Transfer Unit Input Shaft
10 Power Transfer Unit Vent Hose
11 Power Transfer Unit Idler Gear Shaft Bearing- Front
12 Power Transfer Unit Idler Gear Shaft Bearing Race- Front
13 Power Transfer Unit Idler Gear Shaft Bearing Race Shim- Front
14 Power Transfer Unit Idler Gear Shaft Tube O-ring- Front
15 Power Transfer Unit Input Shaft Bearing- Rear
16 Power Transfer Unit Input Shaft Bearing Race- Rear
17 Power Transfer Unit Idler Gear Shaft Bearing Race Shim- Rear
18 Power Transfer Unit Input Shaft Seal- Rear
19 Power Transfer Unit Vent Hose Connector
20 Power Transfer Unit Extension Housing
21 Power Transfer Unit Fill Plug
22 Power Transfer Unit Extension Housing Bolt
23 Power Transfer Unit Idler Gear Shaft Tube O-ring- Rear
24 Power Transfer Unit Idler Shaft Tube
25 Power Transfer Unit Idler Gear Shaft Bearing Race Shim- Rear
26 Power Transfer Unit Idler Gear Shaft Bearing Race- Rear
27 Power Transfer Unit Idler Gear Shaft Bearing- Rear
28 Power Transfer Unit Idler Gear Shaft
29 Power Transfer Unit Intermediate Drive Shaft - Model Dependent
30 Power Transfer Unit Intermediate Drive Shaft Bearing
31 Power Transfer Unit Intermediate Drive Shaft Bearing Retaining Ring [2x]
32 Power Transfer Unit Intermediate Drive Shaft Bearing Retainer
33 Power Transfer Unit Cover to Intermediate Drive Shaft Seal
34 Power Transfer Unit Half Shaft Seal - O-Ring
35 Power Transfer Unit Half Shaft Retainer Clip
36 Power Transfer Unit Heat Shield Bolt - Model Dependent
37 Power Transfer Unit Heat Shield - Model Dependent
38 Power Transfer Unit Propeller Shaft Retainer
39 Power Transfer Unit Propeller Shaft Seal - O-Ring
40 Power Transfer Unit Rear Output Shaft Seal
41 Power Transfer Unit Rear Output Shaft Nut
42 Power Transfer Unit Rear Output Shaft Bearing
43 Power Transfer Unit Rear Output Shaft Bearing Race
44 Power Transfer Unit Rear Output Shaft Bearing Spacer
45 Power Transfer Unit Rear Output Shaft Housing Bolt
46 Power Transfer Unit Rear Output Shaft Housing
47 Power Transfer Unit Rear Output Shaft Shim
48 Power Transfer Unit Rear Output Shaft Housing Seal (O-ring)
49 Power Transfer Unit Rear Output Shaft Bearing Race
50 Power Transfer Unit Rear Output Shaft Bearing
51 Power Transfer Unit Rear Output Shaft
52 Power Transfer Unit Drain Plug