A/T - Transaxle Stub Shaft Disengagement
File In Section: 7 - TransmissionBulletin No.: 57-71-11A
Date: September, 1996
INFORMATION
Subject:
Transaxle Stub Shaft Disengages from the Transaxle During Axle Tripot Removal
Models:
1995-97 Chevrolet Cavalier
1995-97 Pontiac Sunfire with HYDRA-MATIC 4T40-E Transaxle (RPO MN4) and 2.2L, 2.3L, 2.4L Engine (VINs 4, D, T - RPOs LN2, LD2, LD9)
This bulletin is being revised to update models and Include mandatory replacement of the axle seal. Please discard Corporate Bulletin Number 57-71-11 (Section 7 - Transmission.)
The transaxle stub shaft may disengage from the transaxle during axle tripot removal. If this condition occurs, transaxle fluid may leak from the transaxle through the stub shaft location.
Remove the stub shaft from the axle tripot and reassemble the stub shaft and sleeve assembly into the transaxle using the following procedure:
Important:
If this condition exists, it is mandatory that the axle seal (2) be replaced with a new axle seal.
Be careful not to damage the stub shaft sleeve (56) during the following procedure or an axle seal leak may develop.
1. Remove the snap ring (57) from the stub shaft (58). Discard the snap ring after removal from the stub shaft. The snap ring is not reusable once it is removed from the shaft. (See Figure 3)
2. Connect the stub shaft removal tool (J 38868) to the snap ring groove on the stub shaft and remove the shaft from the tripot with a slide hammer (J 6125-1 B) impact. Support the tripot during stub shaft removal to prevent damage to the tripot. (See Figure 2)
3. Remove and install a new right hand axle seal onto the transaxle (See Figure 3). Refer to the On Vehicle Service Manual for the proper procedure.
4. Inspect the stub shaft sleeve (56) for excessive wear, nicks or scratches, and for damage to the seal portion. If these occur, replace the sleeve (56) following the service procedure found in the Unit Repair Section of the Service Manual.
Important:
The sleeve should be square to the stub shaft (58).
5. Install a new snap ring (57) onto the stub shaft (58) and install the stub shaft into the transaxle. (See Figure 3)
6. Grease the splines on the outer end of the stub shaft with Polyurea grease (Part Number 7847638) prior to installing the tripot (see Figure 3). Use approximately 3 grams of grease and be sure to cover the entire spline area. This grease must be added to prevent corrosion to the shaft splines. Do not add grease to the end of the stub shaft that inserts into the transaxle.
7. Reset the transaxle fluid level (refer to the appropriate Service Manual for detailed fluid level service procedures).
Parts Information
Part Illustration
Number Description Number
24201936 Axle Seal 2
7829495 Stub Shaft Snap Ring 57
7847638 Polyurea Grease (133 gram bag)
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Labor
Operation Description Time
Right stub shaft sleeve
K6925 and/or output stub shaft 0.8
hr replace