Silverado 3500 4WD V8-6.0L VIN U (2004)
11. Remove the lower control arm nuts and the 25/35-series washers.
12. Remove the lower control arm bolts.
13. Remove the lower control arm.
Installation Procedure
1. Install the lower control arm.
2. Install the lower control arm 15-series bolts.
3. Install the lower control arm 25/35-series bolts.
4. Install the washers with the shoulder facing the arm.