Drivetrain and Front Suspension Frame Front Crossmember Replacement (2WD 2500 HD, 3500)

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Drivetrain and Front Suspension Frame Front Crossmember (2WD 2500 HD, 3500)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedure Raise the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the oil pan skid plate. Refer to Oil Pan Skid Plate Replacement (2500/3500 with RPO NZZ) .
1	Engine Front Crossmember Nut (Qty: 2) NOTE: Refer to Fastener Notice . Tighten: 120 N.m (89 lb ft)
2	Engine Front Crossmember Bolt (Qty: 2) Tip: Remove all traces of the original adhesive patch. Clean the threads of the bolt with denatured alcohol or equivalent and allow to dry. Apply threadlocker GM P/N 12345493 (Canadian P/N 10953488).
3	Engine Front Crossmember Nut (Qty: 2) Tighten: 120 N.m (89 lb ft)
4	Engine Front Crossmember Bolt (Qty: 2) Tip: Remove all traces of the original adhesive patch. Clean the threads of the bolt with denatured alcohol or equivalent and allow to dry. Apply threadlocker GM P/N 12345493 (Canadian P/N 10953488).
5	Lower Control Arm Crossmember