I posted a thread about wrapping a leash around your roll bar to hold the dog inside the rear of the jeep.
The Perfect Setup for a Dog in your Jeep!
and it worked great until I had to bring more than one dog with me. Then the dogs just got really wrapped up and tangled and it became a big problem driving any real distance on the highways, it became a pretty unsafe situation quickly.
This situation prompted my designing of a retention system that achieved a few main goals for me:
1) Be as safe as humanly possible.
2)Remain affordable and eye-friendly.
3)Must allow for multiple dogs without tangling.
This achieved all of those goals and is much better than a simple leash.
The weakest point on this has a safe working load limit of 350 pounds, and that is the latch that clips to the dogs harness. Anything higher than that was more of a pain in the rear to fasten and unfasten quickly. The swivel snap shackle is rated at a 3k safe WLL. I made all of this myself in about 3 hours time, I'm relieved it's over now. A second set of hands really would have helped. I'll post photos in a minute. Any input is welcomed!