Drive Sprocket, Driven Sprocket, and Drive Link and Assemble

Tools Required

• J 39064-1  Drive Sprocket Shaft Seal Pusher. See Special Tools .
• J 39064-2  Drive Sprocket Shaft Seal Sizer. See Special Tools .
• J 39064-3  Drive Sprocket Shaft Seal Protector. See Special Tools .

Fig 1: Inspection Areas On Driven Sprockets
Courtesy of GENERAL MOTORS CORP.
1. Inspect the driven sprocket (415) for chipped teeth, worn splines, or a rough bearing.
Fig 2: Locating Drive Sprocket, Turbine Shaft & Snap Ring
Courtesy of GENERAL MOTORS CORP.
2. Remove the following parts from the turbine shaft (410):
   • The turbine shaft snap ring (411)
   • The drive sprocket (407)
   • The drive sprocket oil seal ring (409)
Fig 3: View Of Drive Sprocket Inspection Areas
Courtesy of GENERAL MOTORS CORP.
3. Inspect the drive sprocket (407) for chipped teeth, worn splines, or a rough bearing.
Fig 4: Locating Drive Sprocket, Turbine Shaft & Snap Ring
Courtesy of GENERAL MOTORS CORP.
4. Install the drive sprocket (407) onto the turbine shaft (410), then install the turbine shaft snap ring (411)
Fig 5: Installing Drive Sprocket Oil Seal Ring With J 39064-3
Courtesy of GENERAL MOTORS CORP.
5. Lubricate the drive sprocket oil seal ring (409) with transmission fluid.
6. Install the drive sprocket oil seal ring (409) onto the J 39064-3  . See Special Tools .
7. Place the J 39064-3  onto the drive sprocket (407). See Special Tools . Using the J 39064-1  , quickly push down and install the drive sprocket oil seal ring (409). See Special Tools .
Fig 6: Placing J 39064-2 Over The Drive Sprocket Oil Seal Ring
Courtesy of GENERAL MOTORS CORP.
8. Remove the J 39064-1  . See Special Tools . Place the J 39064-2  over the drive sprocket oil seal ring. See Special Tools . Leave the J 39064-2  in place until ready to install the turbine shaft into the drive sprocket support. See Special Tools .
Fig 7: View Of Drive Chain To The Drive And Driven Sprockets
Courtesy of GENERAL MOTORS CORP.
9. Remove the J 39064-2  from the drive sprocket oil seal ring. See Special Tools .
IMPORTANT: The drive chain must be oriented in the same direction it was in when removed.
10. Attach the drive chain to the drive and driven sprockets.
11. Install the drive sprocket and turbine shaft into the drive sprocket support. Line up the driven sprocket splines with the input shaft and evenly tap the drive and driven sprockets into place until seated.
Fig 8: Measuring Drive Chain To Case Rib Clearance
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: If the clearance is less than 12.7 mm (0.5 in), replace the drive chain.
12. Measure the drive chain to case rib clearance. The clearance should be no less than 12.7 mm (0.5 in).