I would brace with plywood across the bottom of the door opening and only use 3 cable jacks. It only takes 3 point to support a plain any additional points will result in unequal forces, possibility torquing the body. Place your beams through the windows lifting one of them with 2 cable jack and lifting the other beam with a separate beam above the trailer and cabled to the one through the window. Place the lifting jack on center to that beam.
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WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles
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