User guide
STEP 2. INSTALLING THE HORIZONTAL RAILS
The tailgate end of the rail can damage your box during installation; 
we recommend wrapping the ends of the rails or protecting the 
sides and top of box to prevent accidental damage.
Starting with either rail you will need to hold the rail level and slide the 
lower rail (male profi le) into the rail grip (female profi le) that is bolted to 
each side of the canister (Fig. 2A). You must hold the ribbed blanket out 
and level while sliding the rail over it and into the rail grip on the canister. 
(Make sure the ribbed blanket is correctly meshed on the gear). 
 When properly inserted in the rail grips on the canister push the rails all 
the way forward. 
Once the rails are in place on both sides of the canister you can remove 
the protection you placed on the bed and remove the stand the canister 
was set on. Lowering the canister with rails attached onto the truck box. 
The canister will fi t tight and need to be centered the truck bed. 
Make sure the canister is centered in the truck bed at this point and 
throughout this step. 
(Flexing the rails inward prevents the clamps from scratching the 
paint).
Install the rail clamps by fl exing the rails inward slightly, then slide rail 
clamps in the order noted. (FIGURE 2E THE FORWARD DRIVER SIDE 
RAIL CLAMP IS WIDER AND HAS A NOTCH AT THE FRONT) Slide 
one rail clamp all the way forward against the canister on both rails. 
Make sure the wider notched driver side rail clamp is used on the driver 
side and a regular narrow clamp is used on the passenger side. The gap 
between the backside of the rail clamp and the side of the truck bed will 
need to be shimmed. 
To shim, move the rail clamp and place as many of the plastic shims 
between the rail and the bed sidewall as needed to fi ll the gap. Place 
the same number of shims on each side rail to maintain even centering. 
When the rails are shimmed slide the clamps on the rails (Do not secure 
clamp set screws yet). 
With the front clamps shimmed you now need to install and shim the rail 
clamps at the tailgate end the same way you did for the front. Measure 
the width between the rails at the canister end and then at the tailgate 
end. This width must not be wider at the tailgate than the canister end. 
The width is best if shimmed 1/16
th
 to 1/8
th
 maximum narrower at the 
tailgate end. 
 4 ELECTRIC RETRACTABLE UTILITY BED COVER INSTALLATION INSTRUCTIONS
SAME FOR BOTH STANDARD 
OR EXPLORER SERIES RAILS
STEP 1. PLACE THE CANISTER
Prior to placing canister in the bed you will want to protect the paint 
with a couple of towels or pieces of packing foam since the fi t is very 
tight, there is a risk of scratching the sides of the bed. Blue painters 
tape works well for protection also. 
This will require two people. Set the canister on a stand at the front 
end of the bed so that the sides of the canister are above the sides of 
the truck bed about 3 inches. (A folding chair works well). (Fig. 1A)
Pull approximately 4-5 ribs of the cover out of the canister. 
FIG. 1A
Rail 
Grips
Rail 
Flange
Ribbed 
Blanket
FIG. 2A
FIG. 2B
FIG. 2C
FIG. 2D










