Chevrolet Silverado / GMC Sierra. Service manual — part 948

1. Inspect the external splines of the intermediate internal gear.

2. Replace the intermediate internal gear if detectable notching has occurred.

INTERMEDIATE CARRIER ASSEMBLY DISASSEMBLE

splines of the intermediate internal gear.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 364: View Of Intermediate Carrier Assembly & Output Carrier Internal Gear
Courtesy of GENERAL MOTORS CORP.

1. Remove the retaining ring (1) from the output carrier internal gear (3).

2. Separate the intermediate carrier assembly (2) from the output carrier internal gear (3).

INTERMEDIATE CARRIER ASSEMBLY INSPECTION

Fig. 365: Checking End Play Between Intermediate Carrier Assembly And Thrust
Washer On Intermediate Carrier Assembly
Courtesy of GENERAL MOTORS CORP.

1. Check the end play between the intermediate carrier assembly (1) and the thrust washer (2)

at each pinion gear (3).

2. If the end play exceeds specifications replace the intermediate carrier assembly.

Specification: The maximum end play is 1.01 mm (0.040 in).

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 366: Measuring Inside Diameter Of Intermediate Carrier Bushing
Courtesy of GENERAL MOTORS CORP.

3. Inspect the bushing (1) for wear and damage.

4. Measure the inside diameter (ID) of the bushing at dimension A.

5. If the bushing ID exceeds specifications, replace the bushing.

Specification: The bushing maximum ID is 36.575 mm (1.4400 in)

INTERMEDIATE CARRIER BUSHING REPLACEMENT

Tools Required

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

J 43785 Intermediate Bushing Remover/Installer. See Special Tools.

J 8092 Universal Driver

Replacement

IMPORTANT: The preferred method for removing/installing the intermediate

carrier bushing is to use J 43785 and a press. See Special Tools.
If a press is not available, use J 43785 and universal driver J
8092 . See Special Tools.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado