My old rv the back bumper was square steel tubing and I slid the dump hose into that. Worked pretty good.
My present truck has a Liftco slide. It's got two long threaded rods on the underside. One electric motor turns the screws. It has worked fine for me. I think they're a good company.
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'03 Freightliner FL112, 295" wheel base, with '03 United Specialties 26' living quarters, single screw, Cat C12 430 h/p 1650 torque, Eaton 10speed , 3.42 rear axle ratio
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