For 1990-2009 cars only
5th/6th Gear Synchronizer
- Apply lubricant GM P/N 89021806 (Canadian P/N 89021807) as shown in illustration. Install the following components into the 5th/6th synchronizer hub (124/118):
- Apply lubricant to the blocking ring, driven gear and sleeve. Install the following components into the reverse gear (206):
Important: Ensure that the hub slides easily.
| • | the 5th gear blocking ring (121b) |
| • | the 6th gear blocking ring (121a) |
| • | the reverse gear insert (120) and the spring (195) |
| • | the reverse gear blocking ring (122) |
| • | the reverse driven gear (112) |
| • | the synchronizer sleeve (125) |
1st/2nd, 3rd/4th Gear Synchronizer
- Install the synchronizer insert and spring into the synchronizer hub. Press the spring and slide the insert in.
- Apply lubricant to the cones and blocking rings. Align and install the following components into the 1st/2nd gear synchronizer hub (115/117):
- Apply lubricant to the blocking rings. Install the following components into the 3rd/4th gear synchronizer hub (116/118):
Important: When you service the synchronizers, retain them in the same order that they are removed. Keep the synchronizer components together and mark them to identify correct location.
| • | the 1st gear synchronizer inner cone (96) |
| • | the 1st gear synchronizer outer cone (97) |
| • | the 1st gear outer blocking ring (98) |
| • | the 2nd gear outer blocking ring (98) |
| • | the 2nd gear synchronizer outer cone (97) |
| • | the 2nd gear synchronizer inner cone (96) |
| • | the 3rd gear blocking ring (104) |
| • | the 4th gear blocking ring (121) |
