I don't know if this qualifies--
I got rid of my Jeep and got a new truck, my Yakimal towers wouldn't fit, nor did I want to spend another $500 bucks on Yakimal's truck bed tower system.
Soooooo I bought a $150 dollar ladder rack.
But..
I didn't want to drill holes in my truck.
So I welded two pieces of pipe onto the side of each bracket-- and got some "J" bolts. The "J" bolts run through the pipe and down along side the truck's rail-- the J part hooks under the rail and then I crank a bolt down to tighten the brackets down. The bar at the top of the rack puts more pressure against the brackets (horizontally) at the bottom.
They aren't going anywhere. To top it off takes me about 10 minutes to remove the whole thing!
Then I just installed my old Yakimal Hullyrollers and Mako Kayak saddles via stainless steel hose clamps.
So for a total of about $200 bucks I got a nice solid kayak rack.
The yellow yak is my wife's Navigator the white yak is my Fish'n'Dive
Haven't figured out how to transport my son's Cobra Explorer... any Ideas?