Brought home our new trailer (White Hawk 23MBH) yesterday. Great experience overall! Dealer installed and set-up an Equal-i-zer brand WDH with 4-way sway control hitch 1200/12,000 lb. version.
The drive home included a combination of side streets, highways and interstate. It towed really smoothly for most of the 50 mile trip home until I entered the interstate for about 5 miles. We then got some pretty significant bobbing (up/down) the whole time while on that stretch running at around 60 mph. Once we got to our exit and onto country hwy roads, it towed super smoothly again. Truck had a full tank of gas and two passengers and trailer was unloaded as it was delivered from the dealer. Trailer weight is around 5100 lbs and TW is around 650 lbs. The Interstate where we had the issue was I94 just coming into WI. form MN.
1) Could this just be the spacing of the concrete slabs of the highway causing this and that this would be considered normal?
2)Could the WDH set-up still need some tweaking? The person that set up the WDH said he had done over 100 WD installs over 16 years so I trust his experience but I wonder...
When the trailer was hooked up and ready to go and while sitting on a level surface the trailer was slightly nose up. The installer said that the front of the truck dropped 1/2 in and rear dropped 3/4. He said it was set up this way assuming when loaded for a trip it (the trailer) would level out. Does this seem correct? From all of the reading I have done, not claiming any expertise however as this is new to me, it seems that the trailer should be level or slightly nose down, the front height of the vehicle should remain close to the same or maybe 1/2 inch up and rear should remain the same heigh or maybe 1/2 -3/4 down when trailer is hooked up and WD mechanisms attached.
I took measurements of the front and rear vehicle height 'before' going to the dealership but did not re-check them after it was hooked and then unhooked at home before measuring. I am going to go out this afternoon, hook back up and find a level spot to measure and try some more roads to see what I can figure out.
I will attempt to add a pic...kind of a bad angle so may not be that helpful.
I would appreciate any advice from people experienced with setting these things up. I would also be great to hear how others with a similar trailer/truck combos have theirs set-up.
Thanks a bunch!