Transmission Drive Sprocket Sub-ASSY: Overhaul

WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE TRANSMISSION DRIVE SPROCKET SUB-ASSY
1. Using a thin screwdriver, remove the snap ring from the transmission drive sprocket.
  
  Fig 1: Removing Snap Ring From Transmission Drive Sprocket
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the spacer and the needle roller bearing from the transmission drive sprocket.
Fig 2: Removing Spacer And Needle Roller Bearing From Transmission Drive Sprocket
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT DRIVE SPROCKET THRUST NEEDLE ROLLER NO.1 BEARING
1. Check the bearing for abnormal wear or color change.
HINT:

Replace the needle roller bearing with a new one if abnormal wear or color change is observed.

Fig 3: Inspecting Drive Sprocket Thrust Needle Roller No.1 Bearing
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL TRANSMISSION DRIVE SPROCKET SUB-ASSY
1. Apply ATF WS to the sliding surfaces of the bearing and install the needle roller bearing to the transmission drive sprocket.
2. Install the spacer to the transmission drive sprocket.
  
  Fig 4: Installing Spacer And Needle Roller Bearing From Transmission Drive Sprocket
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Using a thin screwdriver, install the snap ring to the transmission drive sprocket.
Fig 5: Installing Snap Ring To Transmission Drive Sprocket
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002