Chevrolet Silverado / GMC Sierra. Manual — part 2266

TRANSMISSION SUPPORT CROSSMEMBER REPLACEMENT (2WD 2500 HD/3500)

Fig. 10: Transmission Support Crossmember (2WD 2500 HD/3500)
Courtesy of GENERAL MOTORS CORP.

2

Procedure

1. Remove all traces of the original adhesive patch.

2. Clean the threads of the bolt with denatured alcohol or equivalent and

allow to dry.

3. Apply threadlocker GM P/N 12345493 (Canadian P/N 10953488).

3

Lower Control Arm Crossmember

Callout

Component Name

Preliminary Procedures

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

2. Support the transmission with a transmission jack.

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Frame and Underbody - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra

& Silverado

TRANSMISSION SUPPORT CROSSMEMBER REPLACEMENT (2WD 1500/2500)

1

Transmission Mount to Crossmember Nut (Qty: 2)

Tighten: 40 N.m (30 lb ft)

NOTE:

Refer to Fastener Notice .

2

Transmission Crossmember Nut (Qty: 4)

Tighten: 97 N.m (70 lb ft)

3

Transmission Crossmember Bolt (Qty: 4)
Tip:

1. Remove all traces of the original adhesive patch.

2. Clean the threads of the bolt with denatured alcohol or equivalent and

allow to dry.

3. Apply threadlocker GM P/N 12345493 (Canadian P/N 10953488).

4

Transmission Crossmember

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Frame and Underbody - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra

& Silverado

Fig. 11: Transmission Support Crossmember (2WD 1500/2500)
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Preliminary Procedures

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

2. Support the transmission with a transmission jack.

1

Transmission Mount to Crossmember Nut (Qty: 2)

Tighten: 40 N.m (30 lb ft)

NOTE:

Refer to Fastener Notice .

2

Transmission Crossmember Nut (Qty: 4)

Tighten: 97 N.m (70 lb ft)

Transmission Crossmember Bolt (Qty: 4)

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Frame and Underbody - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra

& Silverado

TRANSMISSION SUPPORT CROSSMEMBER REPLACEMENT (4WD 1500/2500)

Fig. 12: Transmission Support Crossmember (4WD 1500/2500)
Courtesy of GENERAL MOTORS CORP.

3

Tip:

1. Remove all traces of the original adhesive patch.

2. Clean the threads of the bolt with denatured alcohol or equivalent and

allow to dry.

3. Apply threadlocker GM P/N 12345493 (Canadian P/N 10953488).

4

Transmission Crossmember

Callout

Component Name

Preliminary Procedures

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

2. Support the transmission with a transmission jack.

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Frame and Underbody - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra

& Silverado