I have an 2008 f250 super cab-long bed with timbren installed and I pull a 41 foot 365saqb sierra with the rotoflex hitch on the RV. I can not believe how well this combination tows!
hitting dips/bumps, chucking etc. Just thought id share incase anyone else can use this info. The only downside id it rides a LITTLE stiff with no load on but to me is well worth the trade off for something I NEVER have to think about again. On a 1-10 I would say the ride is now a 8 if it were a 10 before.