Pro Series 51021 User Manual
SERIES 51®
Existing Spacer
*
Installation Instructions
Chevrolet Full Size Pickup
GMC Full Size Pickup
Part Numbers:
51021
Steel Step Bumper
Heavy Duty Suspension
Reinforcement
Hitch Shown In Proper Position
For 6 Ft. beds with Optional
Heavy Duty Suspension.
Equipment Required:
Fastener Kit: 51021-051
Wrenches: 7/8, 13mm, 18mm, 19mm
Drill Bits: None
Rivet
Frame
Center of vehicle
3
Used to reinstall ground
Figure 1.
wire and ground wire bolt
(All Models)
Hitch type
Weight Distributing
Weight Carrying
Ball Mount
Wiring Access Location: PU3
Fasteners typical both sides
Do Not Exceed Lower of Towing Vehicle
Manufacturer’s Rating or
Max Gross
Trailer WT (LB)
6
3
5
4
3
9
*
7
2
Frame
4
8
8
1
Max Tongue
WT (LB)
1000 (454Kg)10,000 (4540 Kg)
500 (227 Kg)5000 (2270 Kg)
Required for
vehicles without
bumpers
Bumper bracket
Typical both sides
Existing weldnut
Typical both sides
* Only used on 6 FT, beds with Heavy Duty Suspension
1
2
3
4
5
Note:
On vehicles without factory bumper, it will be necessary to relocate license plate mounting bracket.
1. Remove and discard M12 hex bolts from end of each frame rail if present.
2. Remove ground wire and ground wire bolt, if present, on driver’s side frame rail.
3. Lift receiver into position, locating slots in receiver over weldnuts in vehicle frame.
Note:
For vehicles w/o bumper, locate slot in receiver over fore/aft slot near end of frame.
4. Install M12 hex bolt (supplied) and conical washer through receiver into weldnut in vehicle frame.
Note:
See illustration for placement of fasteners on vehicles w/o bumper.
5. Install remaining fasteners as shown.
6. Reinstall ground wire and ground wire bolt to hole in side of side bracket.
Note:
On 6’ bed models, spacer (Item 3) located at forward-most attachment on driver’s side may be oriented as shown in Figure 1, if
necessary to insure clearance of rivets. Spacer must sit flat on frame.
Note: check hitch frequently, making sure all fasteners and ball are properly tightened. If hitch is removed, plug all holes in trunk pan or other body panels to
prevent entry of water and exhaust fumes. A hitch or ball which has been damaged should be removed and replaced. Observe safety precautions when working
beneath a vehicle and wear eye protection. Do not cut access or attachment holes with a torch.
This product complies with safety specifications and requirements for connecting devices and towing systems of the state of New York, V.E.S.C. Regulation V-5
and SAE J684.
z 2001, 2006 Cequent Towing Products
Hex Bolt M12 X 1.75 X 45Qty. (2)
Conical Washer 1/2Qty. (4)
Spacer .250 X 1.50 X 2.00Qty. (4)
Lock Washer 1/2Qty. (4)
Hex Nut M12 X 1.75Qty. (2)
Tighten all M12 CL10.9 fasteners with torque wrench to 75 Lb.-Ft. (102 N*M)
Tighten all 1/2-13 GR5 fasteners with torque wrench to 75 Lb.-Ft. (102 N*M)
6
7
8
9
Hex Bolt 1/2-13 X 1.75Qty. (4)
Flat Washer 1/2Qty. (2)
Hex Nut 1/2-13Qty. (4)
Spacer .25 X 1.50 X 2.00Qty. (2)
* Spacer .188 X 1.50 X 2.00Qty. (2)
Form: F205 Rev A 5-6-05
Rev. A6-27-06N51021Sheet 1 of 1
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