Speaking of racks and travel. When I had my jeep Cherokee I used the basic style foam

then there are

Now that I have my truck, I use the half rack from harborfreight, got it on sale so it cost me $39.00 and I love it! you can pull the rack off and put it back on when needed! I didn't like drilling into my truck bed, but... hauling my yak is a breeze.

Some also use the extended bed holder for yaks, this seems more easy. But I like my rack because I can carry lumber and it's less attractive for thieves to steal off your truck while your paddling.