Pin is pretty heavy now with a W/D & Onan . Not really getting things inside tossed, its the Boss wants it smooth. Actually the bounce is after hitting these super pot holes & bridge expansion joints our roads now have. Ive allways added shocks to our RVs and they helped some. The Grand Design doesn't have the clearance for the LCI kits so have to go with the big buck Roadmaster and was thinking about alternate cures with out going the MR IS system.
Timbren also has an IS system but not for triple axles.