20 
2 MAINTENANCE  
TAILGATE SEAL REPLACEMENT 
When the door/tailgate seal becomes damaged or worn, replace the seal. 
WARNING: For units with hydraulic tailgates, before performing any inspection or 
maintenance on the seal, support the raised tailgate with a crane, forklift, or other 
positive maintenance prop.. 
• 
When removing the old seals (top & bottom) mark the position of the seal joints. 
• 
Pry the seal retainer up slightly to allow removal of the old seals. 
• 
When installing the new seals, join the seals at the same position. 
 
A 
A 
New Seal 
Seal retainer -  
Pry slightly 
upward so new 
seal can be 
inserted 
Pry Bar 
New Seal 
Use a plastic or rubber 
hammer to tamp the seal 
retainer snug against the seal 
all the way around the seal(s)