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40047-INS-RD

  

  

PAGE 2

Step 1

Place the anti-rotate base plate (#2) over the trailer ball shank (#1). 

The trailer ball must be mounted so that the ball articulation 

is in the same direction as vehicle travel.
Place the lock washer (#3) over the trailer ball shank 

and secure with the provided hex nut (#4).

DANGER

 

The anti-rotatation base plate must be used in the 

orientation shown or serious injury or death may result. 

DANGER

 

The anti-rotatation base plate tabs must fit freely over the width 

of the ball mount tongue or serious injury or death may result.

1

2

3

4

Grease zerk 

location

Vehicle 

travel

Trailer ball 

pivot pin

Step 2

Tighten the hex nut (#4) to 250 ft-lbs. The threaded 

shank must extend beyond the nut when tightened.

DANGER

 

Failure to tighten hardware to the specified 

torque can result in serious injury or death. 

Step 3

Grease the trailer ball assembly, using the grease zerk 

located on the bottom of the RockerBall

 shank. Grease 

prior to initial use and once every 3 months or 3,000 miles 

of use with a high-quality molybdenum-based grease.

DANGER

 

Failure to grease the trailer ball assembly may lead 

to failure and can result in serious injury or death. 
RockerBall

 is adequately lubricated when 

grease can be seen in the areas marked below.

ASSEMBLY

Parts List

Item Qty Description

1

1

Trailer ball assembly

2

1

Anti-rotation base plate

3

1

Lock washer, 1"

4

1

Hex nut, 1"

Ball mount sold separately

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