I hauled a 9' Lance in a 05 Ford F350 that had 5th wheel rails. I used 2" pink Foumular NGX foam, 2 ea. 2' by 8' sheets. The camper weight only left slight indications of the bed in the foam, it is a large footprint with a light pound per square foot camper <100lb/sq ft . It is available with up to 100 psi/sq. inch. The foam adds virtually no weight to the truck, and the camper doesn't slide on the foam. It is closed cell, so doesn't absorb water, or rot. ~$50.
Happy Trails!
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04 Horizon QD, 12 Ford Flex, Excalibar, Brakemaster, Winter Texan, RVin! since 1974
Norm, Donna & Tinker Kat(RIP) 01 Z3
Life is a Timed Event, you only get One Go Around!
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