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

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Lower Control Arm Crossmember, Front Crossmember Bolts & Nuts

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) or Oil Pan Skid Plate Replacement (1500 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