I have loadlifter 5000 ultimate with the wirelessONE compressor system and a airlift 2 gal tank with quick connects. Love it. All mounted under the bed of my Titan XD. I’ve pulled dump trailers loaded with cut oak wood, up to 10k lbs and sealant tanks up to 11k lbs. With air in the bags, I’ve had absolutely no problems, truck pulls awesome and no trailer sway.