I've decided to keep the rails and have a plate welded on top, I've had a hard time finding a replacement rail that works well as a step (it's very hard to get in my jeep at it's height and I'm not getting any younger). Sorry if this affects anyone, I tried not to make any promises to anyone.
FYI, pup had surgery on Monday, he had a plate and 10 bolts put in his leg, $2700. He's acting like a normal puppy again, but he has to be secluded to a crate for the next 8-10 weeks so he doesn't mess it up.
fl-mitchells: I never expected it to happen this way either, like I mentioned, he always jumped over the rail, but this time he tried to shimmy down by putting a paw on the rail. My guess is either he slipped a little bit or jumped at too steep an angle and his foot got lodged in. I'd definitly recommend not letting your dog jump out with these rails on, and just pick him up and out.