There's a certain stretch of federal route 31 in Michigan I swear is engineered to disrupt trailer towing. For whatever reason MDot cut out 3 ft sections of roadway and then filled them back in.
My little trailer chucks like crazy on these few miles. The spacing between patch sections is perfect to reinforce chucking.
Only solution is to drive 15 mph (limit is 45)
It's worse now with my 2500 than the old 1500. I think the 1500 was pretty much maxed out and there wasn't much play left in the suspension. The 2500 has enough play she bucks and chucks really good.