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Have you talked to rv dealers or trailer shops to see what they would charge to set up the wdh or just install the right ball?
I guess it depends on the dealer or shop... I didn't pay anywhere near that kind of markup. There are also trailer repair and shops dedicated for towing that do this kind of work. But if all your missing is a tool to do it by all means buy the right tool and get r done. That is usually what I would do but with buying a trailer when it was 20 degrees out I just let the dealer do it. Was worth the small upcharge in that case.I promise, a dealership is the absolute -last- place you want to go for accessories, unless you have no other choice. I've set 'em up before; it's worth it to me to get something pre-rigged for the convenience and time saved, and I'd rather pay $400 online vs. $800 at the dealership for the same hitch rigging. P&S is the most profitable department of any dealership - the markups are astounding (the only thing that keeps them from marking-up the 3rd-party products 200%+ like they do on brand-name parts is competition from Amazon/Walmart/etc.)
As far as the squat-factor, surprisingly enough my back-end barely noticed when I drove the trailer home sans WDH (360lbs of tongue weight from a perfectly-balanced-because-it-was-completely-empty ultralight trailer, which really isn't going to affect springs like 750 lbs or more sitting on the ball would.) Still want to get a WDH though, just because.
Edit: To demonstrate, this links to a pic I took on a stop while dragging it home for the first time: https://www.ramforum.com/threads/what-did-you-do-with-your-4th-gen-this-week.34480/post-2766525
Anything that a truck and trailer can traverse, a wdh will go through as well with the same trailer. Going into dips it doesn't allow the hitch to dip as much so the arms don't drag. Same applies to break overs.One thing that seems to rarely come up in WDH discussions is the intended terrain where it will be used. I have a 10K dump trailer that nears the limit of the coupler angle when cresting certain features on access roads that I use it on, and at other times I traverse dips where the coupler is 2-3' lower than the front bumper/trailer tailgate. I don't have or feel that I need a WDH but it's hard to imagine that these scenarios would not pose a problem for one. I guess you could just disconnect the spring arms if entering such terrain -- if you remember.