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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 85 (Manual Transmission - TREMEC 6-Speed (Mg9 M3L)) >> Repair Instructions - Off Vehicle >> Main Shaft and Input Shaft Assemble (MG9) >> 3rd Speed Drive Gear Installation

3rd Speed Drive Gear Installation

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: 3rd Speed Drive Gear Components
GM3212471Courtesy of GENERAL MOTORS COMPANY
3rd Speed Drive Gear Installation

Callout Component Name
1 3rd Speed Drive Gear Needle Bearing
2 3rd Speed Drive Gear Bearing Spacer
3 3rd Speed Drive Gear
4 3rd Speed Drive Gear Inner Cone
5 3rd Speed Gear Friction Cone
6 3rd Speed Drive Gear Synchronizer Blocking Ring
NOTE:

Ensure the tabs on the blocking ring align with the corresponding pockets in the synchronizer hub.

7 3rd/4th Synchronizer Assembly
NOTE:

The groove on the sleeve faces the 3rd speed gear.

Procedure

  1. Check the 3rd/4th speed gear synchronizer assembly scribe marks for correct position.
  2. Start the hydraulic press operation.
  3. STOP pressing before the keys engage the blocking ring slots.
  4. Lift and rotate the 3rd speed gear in order to engage the keys with the blocking ring.
  5. Continue pressing until the synchronizer is seated.

Special Tools

  • J-36183  Press Tube
  • J-36184  Press Tube Adapter

For equivalent regional tools, refer to Special Tools .
8 3rd/4th Synchronizer Retaining Ring