4 5
1: INSTALLING SIDE RAILS (Continued)
I. With side rail guide set on top of box, install second clamp at side rail splice (where
two side rail sections meet). Repeat clamping procedure.
NOTE: The second clamp covers the side rail splice and engages grooves on both rail
sections. If clamp cannot be installed on side rail splice, install second clamp as close as
possible to side rail splice favoring rail section closest to cab.
J. Install third clamp 2/3
rds
from front of box. Repeat clamping procedure.
K. At rear of box with side rail guide set on top of box, place rear clamp as close to
tailgate as possible. Repeat clamping procedure.
IMPORTANT: Ensure clamp teeth engage grooves on side rail.
Install 4
th
clamp as close to
tailgate as possible (and on 2
layers of metal when present)
Install 2
nd
clamp at side rail splice
Install 3
rd
clamp 2/3
rds
from front of box
Install 1
st
clamp as close to front as possible
(and onto 2 layers of metal when present)
NOTE: For trucks with electric tailgates, typically side rail must be installed slightly
higher to eliminate interference.
L. Repeat Step 1 to install side rail on opposite side.
M. Torque all clamps to 20 ft-lbs or value specied in special instructions (if supplied).