GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Corvette 🢒 Transmission 🢒 Manual Transmission - Tremec 6-Speed 🢒 Main Shaft and Input Shaft Assemble

Special Tools

    • J 25234 Press Tube
    • J 28537-17 Bearing Race Installer
    • J 36183 Press Tube
    • J 36184 Press Tube Adapter
    • J 39371 1st/2nd Synchronizer Installer
    • J 39441 5th/6th Driven Gear Installer
    • J-39441-20 5th Gear Installer Adapter
    • J 39473 Mainshaft Bearing Installer

Mainshaft


    Object Number: 1938390 Size: SH
  1. Install the 3rd speed gear caged needle bearing.
  2. Install the spacer.

    3. Object Number: 4810 Size: SH
  3. Check the 3rd/4th speed gear synchronizer assembly scribe marks for correct positions.

    4. Object Number: 1938451 Size: SH
  4. Install the 3rd/4th synchronizer assembly as follows:
    5. 4.1. Start the press operation.
    4.2. STOP pressing before the keys engage the blocking ring slots.
    4.3. Lift and rotate the 3rd speed gear in order to engage the keys with the blocking ring.
    4.4. Continue pressing until the synchronizer is seated.
  5. Install the following parts in order, using the J 36183 , the J 36184 , and a hydraulic press:
    6. 5.1. The 3rd speed gear
    5.2. The 3rd speed gear inner cone
    5.3. The 3rd speed gear friction cone
    5.4. The 3rd speed gear blocking ring
    5.5. The 3rd/4th speed gear synchronizer assembly (the groove on the sleeve faces the 3rd speed gear).

    Object Number: 1938384 Size: SH
  6. Install the 3rd/4th synchronizer retainer ring.

    7. Object Number: 1938452 Size: SH
  7. Install a new mainshaft small tapered bearing, using the J 39473 and a rubber mallet.

    8. Object Number: 1938379 Size: SH
  8. Install the 2nd speed gear caged needle bearing and bearing spacer.

    9. Object Number: 1938453 Size: SH
  9. Do the following when installing the 1st/2nd synchronizer assembly:
    10. 9.1. Start the press operation.
    9.2. Stop pressing before the keys engage the blocking ring slots.
    9.3. Lift and rotate the 2nd speed gear in order to engage the keys with the blocking ring.
    9.4. Continue pressing until the synchronizer is seated.
  10. Install the following parts in order using the J 39371 and a hydraulic press:
    11. 10.1. The 2nd speed gear
    10.2. The 2nd speed gear inner cone
    10.3. The 2nd speed gear friction cone
    10.4. The 2nd speed gear blocking ring
    10.5. The 1st/2nd synchronizer assembly (The ID groove on the sleeve faces the 1st speed gear.)

    Object Number: 1938454 Size: SH
  11. Install the following parts in order:
    12. 11.1. The two piece thrust washer
    11.2. The blocking ring
    11.3. The friction cone
    11.4. The inner cone

    Object Number: 105701 Size: SH
  12. Install the following parts in order:
    13. 12.1. The 1st speed gear locking ring
    12.2. The 1st speed gear caged needle bearing
    12.3. The 1st speed gear
  13. Using J 39441 and J-39441-20 , install the mainshaft large tapered bearing.

    14. Object Number: 1938455 Size: SH
  14. Using J 39441  (1) and J-39441-20  (2), install the 6th speed gear.

Input Shaft


    Object Number: 1887615 Size: SH
  1. Install a new bearing race on the input shaft, using the J 28537-17 and a hydraulic press.

    2. Object Number: 1887616 Size: SH
  2. Install a new tapered bearing on the input shaft. Use the J 25234 and a hydraulic press.