Chevrolet Silverado / GMC Sierra. Manual — part 2948

Clutch Assembly Installation

Measuring/Adjusting Clutch Assembly Height

Callout

Component Name

1

Transfer Case Rear Output Shaft

2

Transfer Case Control Actuator Lever Thrust Bearing
Assembly

3

Transfer Case Control Lever

4

Transfer Case Control Actuator Lever Bearing
Assembly

5

Transfer Case Control Actuator Lever Ball (Qty: 3)

6

Transfer Case Control Actuator Lever Assembly

7

Transfer Case Control Actuator Lever Thrust Bearing
Assembly

8

Transfer Case Control Actuator Lever Washer

9

Transfer Case Four Wheel Drive Clutch Pressure -
Apply - Plate
Tip: Ensure the control actuator lever washer is seated
into the apply plate groove.

10

Transfer Case Four Wheel Drive Clutch Pressure Plate
Spring (Qty: 4)

11

Transfer Case Four Wheel Drive Clutch Hub

12

Transfer Case Four Wheel Drive Clutch Shim
Tip:

Use a 3 mm (0.118 in) shim as a base to do the
initial measurements with, this shim may be
changed in the following steps depending on the
results of the stack clearance.

Use the original shim if reassembling a transfer
case. This shim may be changed in the following
steps depending on the results of the stack
clearance.

13

Transfer Case Two/Four Wheel Drive Clutch Retaining
Ring
Tip: If the clutch shim is not seated against the retaining
ring, replace the clutch pressure plate springs.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 49: Measuring/Adjusting Clutch Assembly Height
Courtesy of GENERAL MOTORS CORP.

Measuring/Adjusting Clutch Assembly Height

Clutch Pressure Plate Installation

Callout

Component Name

Tip:

A variety of shims are available to properly adjust the clearance height of the clutch
assembly.

An inside micrometer may also be used to measure the clutch assembly height.

1

Clutch Assembly

Procedure:

1. Using an inside caliper, measure the height of the

clutch assembly in the location shown and record
the results.

2. Repeat the process in 2 additional locations, 120

degrees from each other.

3. The average of the 3 measurements is the clutch

assembly height.

4. A 3.1 mm (0.122 in) clearance +/- 0.1 mm (0.004

in) is necessary between the clutch pack height and
the assembly height. It may be necessary to replace
the clutch shim with a thicker shim or a thinner
shim, to achieve the proper clearance in the clutch.

5. Subtract the clutch pack height from the clutch

assembly height. The difference should be between
3.0 mm (0.118 in) and 3.2 mm (0.126 in)
clearance.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado