Hey Jay. It sounds like you are on the right track here because a sidewinder pin box will be your only option for pulling your 5th wheel since you have a short bed truck with the Rambox. That said, you are right that the Reese Sidewinder cannot be…

I spoke with my contact at Trailair and from your serial number we were able to determine that your trailer came with a 1621 HD pin box which is a long pin box style. I was unable to obtain the exact part number for your Trailair pin box but from…

There should be a sticker or plate on the pin box itself that lists the manufacturer and model of the pin box. If it is not present then there are some measurements you can take to determine the model of the pin box. I have included a link that…

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have…

Because it's lighter, less expensive, has fewer moving parts and is mechanically less complicated I'd recommend going with the Gen-Y #325-GH-8040 shock absorbing pin box versus a Trailair Flex Air like part #LC328492.…

The correct MORryde Cushioned 5th Wheel Pin Box for a Grand Design Reflections 337RLS is part #MR84VR. This pin box will do a wonderful job of helping smooth the ride due to the internal cushioning which reduces road shock.

There is a way to to a fifth wheel trailer with your 2020 Ram 2500 that has the Ramboxes but you have to install a Sidewinder pin box on the trailer so that the pivot point is raised up high enough that there isn't interference…

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…

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…

The manufacturer and model number of the pin box is usually printed on a sticker or stamped into a plate or directly into the metal of the pin box. If you can't find that, the manufacturer of your 5th wheel should be able to tell…

We have the following Gen-Y shock absorbing 5th wheel pin boxes which are compatible with the Lippert Rhino pin box bolt pattern. The weights listed below are the maximum capacities the pin box is capable of supporting. 21,000 lbs - 3.5K TW #GY86GR…

No, it does not but I have one that does. It is the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box item #GY86GR. This pin box is custom designed for the Lippert Rhino bolt pattern. It has an identical 21,000 lbs towing capacity and a 3,500 lbs…