GMC 1976 ZEO 6083 Maintenance Manual page 657

14- 2 BUMPERS
GAS
FLOATING PISTON
PISTON
TUBE
ASSEMBLY
STOP-RING
HYDRAULIC FLUID
CYLINDER TUBE ASSEMBLY
ORIFICE
A-1910
Figure 2-Energy Absorber-Collapsed Position
GAS-FILLED
PISTON TUBE
ASSEMBLY
STOP RING
SEAL
HYDRAULIC FLUID FILLED
FLOATING PISTON ORIFICE
CYLINDER TUBE
ASSEMBLY
FRAME BRACKET PISTON SEAL
METERING
PIN
MOUNTING
STUD
A-1911
Figure 3-Energy Absorber-Extended Position