NOTE: Lubricate components during reassembly process with ATF.

Install reverse idler gear shaft roll pin into reverse idler gear shaft and install into bottom case half. Install reverse idler thrust washer and gear onto reverse idler gear shaft.
Install reverse shift lever assembly. See Fig 1 and Fig 4 . Tighten bolts to specification. See TORQUE SPECIFICATIONS . Install case magnet in bottom case half. Install differential assembly into bottom case half.
Mesh together and install input and output shafts. Rotate shafts back and forth to start output shaft into its bearing and align ring gear of differential. Install oil flow tube in pocket next to reverse shift lever of bottom case half. See Fig 2 .
Install 1-2 and 3-4 shift fork on their respective synchronizer sleeves. Install 5th-reverse actuator into slot of reverse shift lever. Align forks and actuator and install shift rail. Ensure shift rail retaining groove is up. Install 5th-reverse actuator retaining clip.

Fig 1: Installing Reverse Idler Assembly
Courtesy of GENERAL MOTORS CORP.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Transaxle Reassembly