Owner manual

Quality since 1946Quality since 1946

Tools Required

•3/4" socket

•3/4" wrench

•9/16" socket

•9/16" wrench

•21 mm socket

•Torque wrench

1. Remove 14 mm bolts from bottom of frame

with a 21 mm socket.

2. Bolt brackets on with 14 mm bolts that were

just removed into holes as shown. Insert 1/2"

screw with 1/4" plate through large hole in frame

and into brackets as shown. Install 1/2" washers

and lock nuts on bolts. Leave nuts loose at

this time.

3. Install middle section between brackets as

shown. Use bolting locations indicated. Attach

middle section using 3/8" screws, washers and

lock nuts. NOTE: Be sure to use four holes to bolt

side brackets to middle section.

4. Tighten nuts in the following order: First

torque 3/8" nuts to 40 ft-lb. Then torque 1/2" nuts

to 70 ft-lb. and 14 mm bolts to 85 ft-lb.

5. Install plastic plugs into 3/8" holes in middle

section.

Chevy Silverado & GMC Sierra 2500HD, 1999-2006

1 3004980 1 Middle Section

2 3004908 1 Side Bracket

3 3004909 1 Side Bracket

4 FCS038016125 8 Screw, HHC-3/8-16 x 1.25 Gr 5 Zn

5 FWF038081006 16 Washer, Flat 3/8 SAE Zn

6 FNE038016044 8 Nut, Nylock 3/8-16 x 7/16 Zn

7 3001384 2 Screw, Hex Cap 1/2-13 x 2" Gr 5 Zn

8 FWF050106010 2 Washer, Flat 1/2" SAE Zn

9 FNE050013053 2 Nut, Nylock 1/2-13 Zn

10 3004907 2 Bolt Plate, 1/4"

11 3005078 2 Plug, 7/16" dia. Poly

ITEM PART NO. QTY. DESCRIPTION

Bill of Materials