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Is There A Replacement Pin Box For The Lippert Rhino Box

Question:

Buying a 2021 Forest River that uses the new Rhino Box Lippert 807013 pin box which has different bolt pattern than Reese Sidewinder. Tow vehicle is: 2021 Ram 3500 CC Shortbed with Rambox.

1

Helpful Expert Reply:

The new Rhino Box from Lippert currently has no replacements so you won't be able to swap out this pin box with a Sidewinder to add more turning clearance. Because of this you'll have to use a sliding 5th wheel hitch in your 6.5' bed to help prevent the nose your 5th wheel from coming into contact with the cab of your 2021 Ram 3500.

Unfortunately since you have RamBoxes you will not be be able to tow a 5th wheel without using a rotating pin box and would not be able to tow a trailer with the Lippert Rhino Box as there's a significant chance that the pin box will come into contact with RamBox bedrails. You will need either purchase a different trailer that has a rotating pin box or pin box with a replaceable bolt pattern or purchase a new towing vehicle. Any dealer that would let you try to tow a trailer away with this combination is untrustworthy.

If you didn't have RamBoxes I would recommend the or a sliding 5th wheel I recommend the B&W Companion 5th Wheel Trailer Hitch w/ Slider - Dual Jaw - 20,000lbs # BWRVK3400-5W with the Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches # BWGNRK1320-5W. This custom fit underbed mount will leave your bed empty for full use when the hitch is removed. It will also allow you to switch between this 5th wheel hitch and a gooseneck hitch ball for more trailer versatility. The hitch features 1" Thick dual jaws provide 360-degree jaw-to-king-pin contact for less rattle and more security than slide-bar jaws and has 12" of front to back travel to provide extra turning clearance.

If you have the factory puck mounting system in the bed of your Ram (without RamBox) then I recommend the B&W Companion OEM 5th Wheel Trailer Hitch w/ Slider for Ram Towing Prep Package - Dual Jaw - 20K # BWRVK3670 which is the same hitch as the # BWRVK3400-5W but comes with feet that will mount directly into the pucks for a super easy installation.

helpful expert reply by:
1
Kevin C

Question:

Hello Kevin, thank you for the quick and thorough response. What if I used a product not carried by etrailer like the Pullrite Autoslider #2900?

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Helpful Expert Reply:

Even with the Pullrite Autoslider 2900 you would still face the same issue of the pin box coming into contact with the bedrails. Because the pivot point is in the bed with standard or sliding 5th wheel hitches the pin box is going to rotate left and right as you make turns. Ramboxes significantly reduce the width of the bed thus causing the contact issue. Rotating pin boxes move the pivot point out of the bed to the attachment point of the pin box at 5th wheel trailer. This means the body of the pin box is always going to be parallel to your bedrails and will not come into contact with them.

helpful expert reply by:
1
Kevin C

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