Download 1. 2. 3. 4. 5. Install the spring retainers to the synchronizer hub. Align the scribe marks previously made on the synchronizer hub and the synchronizer sleeve. Install the synchronizer hub to the synchronizer sleeve with the three struts. Install the main drive synchronizer stop ring to the synchronizer sleeve. Install the drive sprocket to the mainshaft. 6. Install the synchronizer assembly to the mainshaft. 7. Install the synchronizer snap ring to the mainshaft. 8. Use a soft faced hammer in order to install the following components into the annulus gear: • The input gear • The planetary assembly 9. Install the snap ring to the input bearing. 10. Apply RTV GM P/N 12345739 or equivalent to the input shaft bearing retainer mating surfaces. 11. Apply threadlocker GM P/N 12345382 or equivalent to the input shaft bearing retainer bolts. 12. Install the input shaft bearing retainer and the input bearing retainer bolts to the front case half. Tighten Tighten the input bearing retainer bolts to 19 N·m (14 lb ft). Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure.