Ford Pickup Bed Sill Shim Blueprint - No. 2 & No. 5 Sill Shim Dimensions

Bed Shim Fabrication & Installation
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The valance and bodyside panels can be slightly adjusted by loosening their attaching bolts. However, if the panels cannot be aligned satisfactorily, the attaching brackets and underbody should be checked for damage.

The pickup box design is the same for both F-Series SuperCab and Regular cab. The rear of the regular cab body is 3mm wider on each side than the front width of the pickup box. However on SuperCab vehicles, the front of the pickup box is 7mm wider on each side than the rear width of the cab body.

If there is a cab-to-box alignment concern, use the following instructions to correct the situation.

1. Loosen all box attaching bolts and remove the four bolts on the low side of the box.
2. Raise the low side of the box and insert the shims between the top of the frame and bottom of the box cross sills according to the following chart.
3. Install the bolts listed below on the side of the box that was shimmed and tighten all box bolt nuts to 54-95 N-m (40-70 ft.-lbs.).
4. If pickup box shims are installed, the following box attaching bolts must be used on the side of the box that was shimmed:
. #1 Bolt Location -- No change, use existing bolt (4.25 inches long, oval shoulder)
. #2 Bolt Location -- Procure new bolt (4.00 inches long, square shoulder)
. #3 Bolt Location -- Use current #2 bolt (3.50 inches long, square shoulder)
. #4 Bolt Location -- Same as current #1 bolt (4.25 inches long, oval shoulder)

1 N803022-S40 Box Bolt No. 4, M12-1.75 x 88.9
2 N803020-S40 Box Bolt No. 3, M12-1.75 x 76.2
3 N803020-S40 Box Bolt No. 2, M12-1.75 x 76.2
4 N803023-S40 Box Bolt No. 1, M12-1.75 x 108
5 N620483-S2 Nut
6 -- Sill No. 2 (8-Ft. Box Only) (Part of 11215)
7 -- Sill No. 5 (Part of 11215)
A -- Tighten to 54-95 N-m (40-70 Lb-Ft)
8 N803022-S40 Box Bolt
9 11215 Pickup Box Floor Pan
10 -- Pickup Box Sills (Parts of 11215)
11 N803334-S2 Shims, 2.5 Inch O.D. x .75 I.D. x .060 (Quantity Changes with Location)
12 5005 Chassis Frame
13 -- Drill 3/16 Inch Pilot Hole, in Steady Rest
14 N80334-S2 Shim
15 -- 1/4 In. x 3/4 Sheet Metal Screw
16 -- Drill 3/16 In. Pilot, Two Places in Sill

NOTE: Bolts should be held down from top of box to prevent the shoulder from popping out of the floor while starting the nut. Tighten all bolts to 54-95 N-m (40-70 ft.-lbs.).

Alternatively, all bolts can be changed to the later-style Torx-head (or aftermarket Allen-head) with U-nuts on the frame using the information on this page & the NEXT 2:

Part of 1980-1986 Ford Bronco Blueprints

Owner caption June 2022 · Photo 6114 of 6546