Automatic Transmission Fluid Leak at Rear of Vehicle (Replace Rear Output Shaft Seal With New Design Seal). Chevrolet Corvette 1999

Subject:

Automatic Transmission Fluid Leak At Rear of Vehicle (Replace Rear Output Shaft Seal With New Design Seal)

Models:

1997 - 2003 Chevrolet Corvette

with 4L60E Automatic Transmission (RPO M30)

Condition

Some customers may comment on a fluid leak from the rear of the vehicle. This condition may be more likely to occur when the temperatures are below freezing.

Cause

The rear output shaft seal (106) may take a set in cold weather, allowing the seal to leak.

Correction

Diagnose the source of the fluid leak. Refer to Fluid Leak Diagnosis (SI Document ID #403256).

•	If diagnosis of the transmission fluid leak determines that the leak is from the rear output shaft seal (106), continue with the next step.

•	If diagnosis of the transmission fluid leak determines that the leak is from a location other than the output shaft seal (106), continue with the appropriate service procedure.

Remove the transmission from the vehicle. Refer to Transmission Replacement (SI Document ID #710311).


(106)	Case Oil Seal Assembly (Corvette Only)

Replace the rear output shaft seal (106), P/N 24228816. Refer to Case Bushing Replacement In the Unit Repair Manual (SI Document ID #589612).

Reinstall the transmission in the vehicle. Refer to Transmission Replacement (SI Document ID #710311).

Road test the vehicle and confirm that all leaks have been repaired.

Parts Information

Part Number	Description
24228816	Seal, Rear Output Shaft (106)

Parts are currently available from GMSPO.

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation	Description	Labor Time
K6360	Seal, Extension Housing Rear - Replace	Use Published Labor Operation Times