Chevrolet 10 1971 Series Chassis Service Manual page 434

BUMPERS 14-2
3. Remove bumper from vehicle.
4. If necessary, replace body dirt seal.
Installation
Install rear bumper following removal procedure in
reverse order. Connect license lamp wiring on suburban,
panel, and pickup models.
FRONT BUMPER— P20 A N D P30 MODELS (Fig. 3)
Removal
Remove nuts, washers, and bolts securing front bumper
to forward frame horns and remove bumper from vehicle.
Installation
Place bumper in mounted position and secure to frame
with bolts, washers, and nuts.
10-30 CHEVROLET TRUCK SERVICE MANUAL