Reaction Sun Gear Installation: Installation

WARNING: This page is about a different car, the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Do not remove the retaining ring (671), except to replace it.

Fig 1: Inspection Areas On Reaction Sun Gear

GM5485

Courtesy of GENERAL MOTORS CORP.

Inspect the reaction sun gear (673) for the following defects:
- Nicks
- Scores
- Damaged spline or teeth
- A worn bushing (672)
- A loose or weak retaining ring (671)

Fig 2: Removing Reaction Sun Bushing From Reaction Sun Gear

GM5486

Courtesy of GENERAL MOTORS CORP.

If the reaction sun gear bushing (672) needs replacement, use J 34196-1 which is part of kit J 34196-B with J 8092 to remove the reaction sun bushing (672) from the reaction sun gear (673).

Fig 3: Installing Reaction Sun Bushing

GM5487

Courtesy of GENERAL MOTORS CORP.

Using J 34196-1 which is part of kit J 34196-B with J 8092 , install a new reaction sun bushing (672) into the reaction sun gear (673).

Fig 4: Identifying Reaction Sun Gear

GM190460

Courtesy of GENERAL MOTORS CORP.

Install the reaction sun gear (673) into the reaction carrier.

Fig 5: Aligning Thrust Washer Tangs With Low And Reverse Roller Clutch Race Splines

GM59275

Courtesy of GENERAL MOTORS CORP.

Install the thrust washer (674) with the tangs pointing down. Index the tangs of the thrust washer with the splines of the low and reverse roller clutch race.