Best shocks for 5th wheel towing

I installed Bilsteins on my truck to help with the same problem. They didn't help at all to quell the harshness coming from the trailer which was transmitted to the truck quite efficiently by the hitch. They were stiffer than the OEM shocks for my truck so the the ride from a smoothness point worsened. However, from a control standpoint they are superior and are a good add.

If you want a smooth ride with your 5er attached get an air hitch to dissipate the forces coming from your trailer. Worked perfectly for me.