Owners manual

Humpstor Positions

The Humpstor can be mounted with the lid opening toward the inside of

the truck bed (a) or with the lid opening toward the outside of the truck

bed (b). The assembly steps and hardware are the same other than the

orientation of the Humpstor.

Look at your bed rail to determine where to attach your topper clamps,

nd locations where you can attach the clamps at the below spacings

and still have room to operate the end latches on the Humpstor. Attach

Topper Clamps (G) to truck bed rail by sliding clamps onto truck bed

rail on top of the Topper and from the bottom of the rail, slide onto

rail as far as possible. Secure to rail by tightening 3/8” bolt already

installed in clamp, tighten rmly with 9/16” wrench, make sure to

keep clamps vertical, square and position at desired spacing as listed

below (measurements are to the center of the hole in the Clamp):

// 51.75” for Standard Spacing // 47.75” with one Offset Plate

// 43.75” with two Offset Plates

Now attach a clamp that is as close to centered between the two previously

installed clamps as possible, this will be for the Center Support Bracket (AB).

Optional Installation Kit: 70250 - Hardware Package for Toyota / Nissan Trucks

STEP 6 - Attach Humpstor to Brackets

STEP 4-Attach Topper Clamps to Truck

Attach Left (F), Right (E) and Center Support (AB) Brackets to Topper

Clamps (G) using Hex Bolt 5/16” x 3/4” (Q), Flat Washer 5/16” (V), Lock

Washer 5/16” (Z), using one per Clamp set (G), thread into hole in Clamp,

as shown below in view (a). Determine where you want the top of the

Humpstor to be positioned and position the brackets (E&F) 10” below

that position to the bottom of the brackets (E&F) where the Humpstor

sits, as shown below in view (b). Position Center Support Bracket (AB)

3/8” lower than Left and Right Brackets. It works best to have the

top of the Humpstor level with the bottom of the window in the

topper for easier access. Level bracket assembly by adjusting each

Stabilizer Foot (K) to contact the side of the truck box, try to have

Stabilizer Foot contact a at surface.

STEP 5 - Attach Brackets to Clamps

Page 3 - Continued . . .

10"

Hole