I agree with what is alread said, the weight is more of a factor of stopping power than pulling HP and torque. That being said, I've had a Jayco low profile , I think it was 25' long that loaded was still under 8K. Real nice camper. In some ways I prefer it to my current 28RK Keystone
Jim
96 GMC 2500 Ext cab Long bed, 8600#, 3.73, Amsoil air filter, amsoil oil, amsoil trans fluid, 3.5 Kennedy Exhaust, 97 airbox mods, EGT, Boost, & Trans Temp on pillar, Heath bumper mounted FSD. Pulling 28' Sprinter 5th