Does anyone know if there are any aftermarket tailgate lock kits available? I'm looking to put a locking tonneau on and need to be able to lock the tailgate as well. Google search did not come back with anything of interest.

Also, anyone know of a decent (build and price) hard, locking tonneau to get for my '78 Supercab? I have had Diamondback before that was awesome, but they cost as much as I paid for the truck. I liked being able to haul up to 400 pounds on top of the cover (lumber, kayaks, etc.). Just wondering what you have used or heard of that may work for me. Just want to be able to have some security, waterproof, and easy to remove to haul larger items if necessary(or on top of tonneau).

I meant to mention, this is for a '78 Supercab short bed.

 

I had a Pace Edwards on my super duty it was an aluminum roll up style so you can use the bed. I loved it.