Great info guys! I was out for work and couldn't get to the thread...
I have a 97 with an Action Van 6" lift. So, different rear springs and the blocks to raise it up. I am having sag issues when towing or hauling a bike. It sits almost level with zero load, but I get the trailer on and I get sag:
I also feel the rear is a bit softer than I would like. I was thinking hauling a bike with bags would make life nicer. It's kind of like the thought that too little sag allows the rear to squat under load and while great traction is nice, it causes the motor to work harder.
I'm not looking at trying to have wheel spin, but thinking the load transfer only causes more work for the van at speed and especially with the trailer...
The trailer never has more than 2 motorcycles in it so, it isn't too heavy. The van vs the dually seems to struggle more and i thought bags MIGHT help a bit.
Interested in that sway bar idea also. Any links to one?