Most Popular 3800 Starting Watts for 2016 GMC Sierra 3500

I ordered two of these at a great price and just hooked them up to the fifth wheel today 12/18/16 at 2:03 pm Arizona time and they haven't missed a beat with everything turned on in heating mode and they keep up perfectly and switched to cooling mode with other stuff running no problem and my fifth wheel is rated at 30 amps service not one problem, thanks to the team at etrailer my hats ?? off to you thanks and will definitely order again I now can operate off the grid wherever I can use it solved my needs 100%

I purchased the 289-SUA2000i-2 for my camper. I placed them on a carrier attached to the trailer receiver and everything worked great.....EXCEPT... while the generater were run i went into the camper and the vibrations were so bad i had to turn the generators off. do you have any suggeations.generators started on the firt pull and ran great.