For 1990-2009 cars

#### Tools Required

• | J 25234 Front and Rear Bearing Installer

• | J 37360 Spiral Snap Ring Installer

• | J 37372 Synchronizer and Gear Installer

1. Soak the new 1ST/2ND or 3RD/4TH speed blocking ring assemblies in transmission fluid for 10 minutes. Use Dexron® III.
2. Coat the mainshaft and the gear bores with transmission lubricant. Use Dexron® III.
3. Check the 1ST/2ND speed gear synchronizer assembly scribe marks for correct positions.
4. Install the reverse sliding gear on the mainshaft hub.

Important: Hard shifting will result if the synchronizer is assembled with improper spring replacement.

5. Assemble the synchronizer as follows:

5.1. | Install the synchronizer keys and the springs.

5.2. | Engage the tang end of each spring in the same synchronizer key.

5.3. | Position the open end of the springs opposite of each other.

6. Install the following parts:

6.1. | The 1ST/2ND speed synchronizer blocking ring

6.2. | The 1ST/2ND speed synchronizer outer cone

6.3. | The 1ST/2ND speed synchronizer inner cone

7. Install the following parts:

7.1. | The locating pin

7.2. | The 1ST speed gear sleeve ( Align the notch in the sleeve with the locating pin.)

7.3. | The 1ST speed gear sleeve bearing

8. Install the 1ST speed gear. Align the slots in the 1ST speed gear with the tabs on the blocker ring assembly.
9. Install the rear mainshaft bearing.
10. Lubricate 5TH speed gear splines with petroleum jelly.

Notice: Align the mainshaft and the gear splines before pressing the gear onto the mainshaft. Damage could occur if the splines are improperly aligned.

11. Install the 5TH speed driven gear. Use the J 25234 and a hydraulic press.
12. Install a new retainer ring.
13. Install the following parts:

13.1. | The 1ST-2ND speed synchronizer blocking ring

13.2. | The 1ST-2ND speed synchronizer outer cone

13.3. | The 1ST-2ND speed synchronizer inner cone

13.4. | The thrust washer

14. Install the synchronizer spiral retainer ring. Use the J 37360 .
15. Install the spacer and the needle bearing assembly.
16. Install the 2ND speed gear and the thrust washer. Align the slots in the 2ND speed gear with the tabs on the blocker ring assembly.
17. Install a new retainer ring.
18. Install the 3RD speed gear spacer and the needle bearing assembly. Make sure the bearing spacer is not trapped between the gear face and the retainer ring. The spacer runs inside the gear bore.
19. Check the 3RD/4TH speed gear synchronizer assembly scribe marks for correct positions.
20. Assemble the 3RD/4TH speed synchronizer parts.

Important: Hold the 3RD speed gear against the synchronizer in order to maintain the blocking ring alignment with the keys.

21. Install the following parts as an assembly:

21.1. | The 3RD speed gear

21.2. | The 3RD/4TH speed synchronizer blocking rings

21.3. | The 3RD/4TH speed synchronizer hub and sleeve assembly. Use the J 37372 and a hydraulic press.

22. Install the main drive gear thrust bearing and the thrust bearing race.