I have a 30 ft. 2011 cougar half-ton towable and don't know what to torque the nuts at. I thought it might be 70 lbs, but when I set them at that amount the nuts don't seem to be tight enough.
Don't forget that there is a pattern to which lug nut is done first, second,... and also that the torque is done in increments. Check with the manufacture of the axles for the sequence and increments.