Ring Gear and Differential Housing Assemble

Tools Required

• J 42162  Side Gear Compressor. See Special Tools and Equipment .
• J 42170  Bearing and Race Installer. See Special Tools and Equipment .
• J 42173  Differential Holding Fixture. See Special Tools and Equipment .

Fig 1: Friction Discs, Separator Plates & Bellville Washer
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Friction discs and separator plates develop specific wear patterns. During disc and plate installation, the components must be installed in the specific order in which they were removed.
1. Install the right clutch pack to the right case.
   • Install the separator plates (4).
   • Install the friction discs (3).
   • Install the friction disc - thick (2).
   • Install the bellville washer (1).
Fig 2: Right Side Gears, Side Gear Washers & Output Shaft & Gear & Right Differential Case
Courtesy of GENERAL MOTORS CORP.
2. Install the right output shaft and gear (3), side gears (1), and washers (2) to the right differential case.
Fig 3: Right Differential Case, Bellville Washer & Clutch Pack
Courtesy of GENERAL MOTORS CORP.
3. Using the J 42162  and a hydraulic press, compress the bellville washer and clutch pack in order to install the cross pin to the right differential case. See Special Tools and Equipment .
Fig 4: Pin, Pin Retaining Bolt & J 42162
Courtesy of GENERAL MOTORS CORP.
4. Using an M8 bolt for alignment, properly position the cross pin into the right differential case. The hole in the pin (2) must align with the hole in the case. During final assembly of the case halves, the pin retaining bolt (1) must be able to pass through the hole in the cross pin.
5. With the pin and case aligned, release the pressure from the press and remove the J 42162  and bolt. See Special Tools and Equipment .
Fig 5: Left Output Shaft & Gear
Courtesy of GENERAL MOTORS CORP.
6. Install the gear to the left output shaft.
Fig 6: Left Output Shaft & C-Clip
Courtesy of GENERAL MOTORS CORP.
7. Install the C-clip to the left output shaft.
Fig 7: Left Side Bearing & J 42170
Courtesy of GENERAL MOTORS CORP.
8. Using the J 42170  and a hydraulic press, install the left side bearing to the differential. See Special Tools and Equipment .
Fig 8: Friction Discs & Separator Plates
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Friction discs and separator plates develop specific wear patterns. During disc and plate installation, the components must be installed in the specific order in which they were removed.
9. Install the left clutch pack to the left case.
   • Install the separator plates (1).
   • Install the friction discs (2).
   • Install the friction disc - thick (3).
   • Install the bellville washer (4).
Fig 9: Left Case, Left Output Shaft & Gear
Courtesy of GENERAL MOTORS CORP.
10. Install the left output shaft and gear to the left case.
Fig 10: Differential Case Bolts & Case Halves, Right & Left
Courtesy of GENERAL MOTORS CORP.
11. Assemble the case halves.
NOTE: Refer to Fastener Notice in Cautions and Notices.
12. Install the case bolts.

    Tighten:  Tighten the bolts to 55 N.m (41 lb ft).

Fig 11: Right Side Bearing & J 42170
Courtesy of GENERAL MOTORS CORP.
13. Using the J 42170  and a hydraulic press, install the right side bearing to the differential. See Special Tools and Equipment .
Fig 12: Ring Gear & Ring Gear Bolts
Courtesy of GENERAL MOTORS CORP.
14. Install the ring gear (1) to the differential. Use several bolts to properly align the ring gear to the case.

    A hammer and brass punch may be used to aid in seating the ring gear onto the differential case.

15. Install the NEW ring gear bolts (2).
Fig 13: Differential Case Assembly & J 42173
Courtesy of GENERAL MOTORS CORP.
16. Position the differential assembly onto the J 42173  . See Special Tools and Equipment .

    Tighten:  Tighten the ring gear bolts to 195 N.m (144 lb ft).