How do I mount TV's in Forest River EVO 2700

Don't know particularly about Forest River, but I used a Sanus mount similar to this one to mount a tv to the bedroom/living room wall in my trailer. I used an ultrasonic stud finder to locate a wood stud. My wall uses 1 x 2 and 1 x 3 studs in that wall. I drilled all the way through and used 1/4 inch bolts with large OD washers under the heads on the living room side. The mount is on the bedroom side. I did the same to mount the other tv to the bunkhouse wall with the tv and mount located over the dinette above the original tv shelf which now supports a satellite receiver and DVD player.