I towed a 26ft travel trailer camper 5k lbs dry with stock suspension and WDH for 1 year, sometimes with a golf cart on an open trailer behind the camper too. With wind or passing semi, the tail definitely wagged the dog. White knuckle ride at times to properly describe it. I had Deaver +3 leaf springs installed and it's night and day. Stock is 4 leafs with a 2" block, Deavers have 12 with no block and that's not the HD ones. Towing and not towing are great, both much better than stock, more like it should be. I've been towing travel trailers for around 30+ years. Deaver springs are kind of an expensive option, around $1,700 total installed for me but worth it. It's the only significant mod I've had done. I haven't done enough off-roading to give an opinion on the performance with Deavers.