For 1990-2009 cars

### 1st/2nd Synchronizer

1. Check the synchronizer assembly scribe marks for correct positions.
2. Install the synchronizer sleeve to the hub (align the key openings in the hub with the cuts in the synchronizer sleeve).
3. Install the keys with the slots facing the hub.
4. Assemble the first spring (assemble the spring tangs to the side of two keys).
5. Assemble the second spring (assemble the spring tangs to the side of two keys such that the gap is not between the same two keys as the first spring).