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49585IN-15946 REV G  

©2007 TOWING PRODUCTS, INC 

1.

    Shim will go all the way down to line up with the bottom hole.

  If this is the case, use the entire      

           shim in the gap.

  

         

Note: It is conceivable that in some rare combinations,  

           two shims could be used.  In these cases, contact  
           Customer Service at 800-632-3290 or  800-428-7303  
           for a free additional shim service kit #58207. 
 

2.

Shim will not begin to fit between the head and hitch bar

.  

 

     If this is the case, discard shim and       

           continue installation.  The existing gap is acceptable 
 

3.

     Shim will not go in far enough to reach bottom hole.

   

            If this is the case, cut shim in half and use only         
            the top half for the top bolt.  Discard bottom half of shim. 

 
 

2.  

Attach chains to spring bars using U-bolts, flat washers, and locknuts. Let 2-3 threads protrude below locknut. Chain 
 must not bind. 

 
 
 
 
 
 
 

  

 

STANDARD SPRING BAR   

 

 

 
3.  

Using tongue jack lower coupler onto ball and close coupler latch. 

 
4.

Hold the spring bar away from you with the Pro Series label oriented up (trunnion shoulder side up as shown above). Set 
the bottom pin of the trunnion into the lower socket of the ballmount and slide the pin into the top slot of the ballmount. 
The spring bar will have to be rotated  

 

outward approximately parallel to the  

 

vehicle bumper to insert the top trunnion  

 

pin.  Repeat for the other side.  The spring  

 

bars will fit on either side as they are not  

  

made right or left handed. 

 
5. 

Position the snap up brackets on trailer 

  

 "A" frame so that the chain on the end of 

  

 the spring bar is approximately vertical. 

  

 Turn 1/2 X 3-1/2 bolt until it contacts frame. 

  

 Then tighten an additional 1/4 turn with 

            wrench. 

DO NOT OVER TIGHTEN. 

 
 

LIFT HANDLE 

PLACE CLOSEST LINK 

ON HOOK WHEN IN 

DOWN POSITION 

INITIAL HOOK UP  
 

 

NOTE: 

Car and trailer should be loaded and ready for travel before final leveling. 

 
1. 

Pick a reference point on the front wheel well. Measure and record the distance to the pavement. 

 

 

Front wheel well to pavement ___________________ 

 
 
 
 

 

 

 

 

 

 

 

Optional Shim Kit 

          Use the shim when needed to fill any gap between the Weight Distributing Head as shown and the hitch bar used  
          in the particular application. 
 
          It is easier to install the shim from the top down as shown on the following page.  In doing so, you will encounter one    
          of three scenarios: 
 

 

Summary of Contents for Professional Series

Page 1: ...re and record the distance from the ground to the top of the coupler Fig 1 page 2 3 Select a hitch ball with a diameter that matches the trailer coupler size The three most common sizes are 1 7 8 2 and 2 5 16 Select ball with 1 1 4 or 1 threaded shank that is V 5 rated equal to or greater than trailer gross vehicle weight rating GVWR WARNING Raised balls usually have reduced load ratings Ball rati...

Page 2: ... adjustment Insert 3 4 X 4 1 2 bolt F through the lower hole in the ballmount and install 3 4 lockwasher G and 3 4 nut H Rotate ballmount up to approximately the center of the tilt adjustment and install one adjustment washer J on 3 4 x 5 1 2 bolt K and insert bolt in upper slot in the ballmount Note The adjustment washer hole is not on center and can be rotated 180 for maximum head adjustment or ...

Page 3: ...bove Set the bottom pin of the trunnion into the lower socket of the ballmount and slide the pin into the top slot of the ballmount The spring bar will have to be rotated outward approximately parallel to the vehicle bumper to insert the top trunnion pin Repeat for the other side The spring bars will fit on either side as they are not made right or left handed 5 Position the snap up brackets on tr...

Page 4: ...ead assembly must be tilted forward The trailer must be uncoupled and the upper bolt removed from the head assembly The head is then pivoted up as appropriate Reassemble and recheck the wheel well height Check to see if trailer is level if not you may need to re adjust ballmount angle and or position Check to see that there is room for the spring bar and chain to move freely when turning a corner ...

Page 5: ...hifting Tongue weight should be about 10 15 percent of the gross trailer weight for most trailers Too low a percentage of tongue weight will often produce a tendency to sway Excess weight on the tongue can also lead to sway and damage hitch and or tow vehicle SWAY CONTROLS A sway control can help minimize the affects of sudden maneuvers wind gusts and buffeting caused by other vehicles Use of a sw...

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