We bought a couple of flat bed sheets in colors that go well with the truck. My wife hemmed them so they were 6 inches wider than the rear seat and long enough to hang down in front without resting on the floor. Lift the horizontal seat up part way and the top of the seat back comes forward enough to tuck the top of the sheet between the seat back and cab, then lower the seat and it's going nowhere. If one sheet gets dirty, throw it in the laundry and stick on the other one. Cheap, easy, and our Golden has no complaints.
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Dan Heynen - Anchorage - '97 Club Cab 2500 4X4, Auto, 3. 54, US Gear brake, gauges, K&N air filter, lock-up switch, TST 230/605, transmission by BD,Mag-Tech rear, Bushwhacker flares, NorthWest Custom mud flaps, Rhino bedliner, Amsoil dealer, 28 ft Cardinal 5th wheel, 25 foot Ericson sailboat, Western Plow, Arctic Cat snowmobiles.