Shift Shaft Assemblies and Gear Clusters Installation

WARNING: This page is about a different variant/trim than selected.

Lubricate all components as assembly progresses, using J 36850: transjel® lubricant.

Fig 1: Identifying 4th Gear Blocking Ring Assembly Components

Courtesy of GENERAL MOTORS CORP.

Install the input shaft (1) in the clutch housing.
Install the 4th gear blocking assembly:
1. Install the 4th speed drive gear inner cone (4).
2. Install the 4th speed drive gear outer cone (3).
3. Install the 4th speed drive gear blocking ring (2).

Fig 2: Mainshaft Components

Courtesy of GENERAL MOTORS CORP.

NOTE: In order for the shift forks to properly line up with the synchronizers, the shift shaft assembly must be assembled correctly. Refer to Shift Shaft and Fork Assemblies Assemble .

Assemble the shift shaft to the mainshaft.
Install the mainshaft and the shift shaft assembly into the clutch housing.

Fig 3: Countershaft

Courtesy of GENERAL MOTORS CORP.

Install the countershaft assembly using the following sequence:
1. Lift up the mainshaft assembly enough in order to install the countershaft assembly.
2. Install the countershaft assembly.
3. Lift the mainshaft assembly enough in order to rotate the input shaft to engage the synchronizer keys with 4th gear blocking ring.

Fig 4: 3rd/4th Shift Fork & 5th/6th & Reverse Shift Shaft Assemblies

Courtesy of GENERAL MOTORS CORP.

Install the 5th/6th and the reverse shift shaft.
Align the slots of the shift shaft levers with the interlock plate.