Installation Procedure
- Install the pickup box to the vehicle.
- Install the screws that retain the fuel filler neck to the pickup box.
- Install the ground wire that retains the fuel filler neck to the pickup box.
- Install the license plate lamp. Refer to LICENSE LAMP REPLACEMENT (W/STEP BUMPER) or LICENSE LAMP REPLACEMENT (W/O STEP BUMPER) or LICENSE LAMP REPLACEMENT (FILLER PANEL) in EXTERIOR LIGHTS article.
- Install the wiring harness ground wire to the frame.NOTE: Refer to FASTENER NOTICE in GM VEHICLES CAUTIONS & NOTICES article.
- Install the bolts that retain the frame to the pickup box.
Tighten
Tighten the bolts to 70 N.m (52 lb ft).
- Install the rear tail lamp assemblies. Refer to TAIL LAMP REPLACEMENT (PICKUP) or TAIL LAMP REPLACEMENT (UTILITY) in EXTERIOR LIGHTS article.