5th Wheel & Sidewinder Needed For 2021 Ram 2500 With RamBox

Expert Reply:

So for your set up, a 2021 Ram 2500 short bed with the RamBoxes, you will need to use a Sidewinder in order to have the clearance to tow a 5th wheel. The Goose Box doesn't move the pivot point and an offset ball just won't be enough for turning clearance; meaning your only option is the Sidewinder.

I can understand wanting to avoid the Sidewinder route due to the added cost of the Sidewinder, but without it you will basically not be able to make any type of turn without damaging your truck. We can get you set up with the right parts, though you'll need base rails and a standard 5th wheel as opposed to the B&W Companion because it mounts in a gooseneck and that set up isn't compatible with a Sidewinder.

What I recommend is going with Reese base rails that are a custom fit, as well as a Reese 5th wheel hitch that is compatible with a Sidewinder and will give you a comfortable, quiet towing experience. The correct parts for your 2021 Ram 2500 are the following:

- Reese M5 5th Wheel Trailer Hitch # RP30928

- Reese Quick-Install Custom Outboard Installation Kit with Base Rails # RP56009-53

- Curt 5th Wheel/Gooseneck Custom Wiring Harness # C56070

Then for the Sidewinder, the correct one is going to depend on the pin box your 5th wheel camper has, along with the correct wedge for the M5 hitch:

- Lippert 0719, 1621, and 1621HD: 5th Airborne Premium 5th Wheel Air Ride King Pin w/ Sidewinder and Turret # RP61422

- Lippert 1716, 1116, and 0115: Reese Sidewinder 5th Wheel King Pin # RP77FR

- Sidewinder Wedge Kit # RP44FR

I have added some links below to video reviews for you to check out as well if you'd like to take a look.

expert reply by: Kyle S

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