I have water leaking around the rear cargo doors of my 93 suburban. I've replaced the weather stripping around all the doors a couple years ago. The rear seems to have water leaking around the top of the door during heavy rain. I put a hose on top and had water running over the top and noticed water leaking in around the top of the cargo doors where the doors come together. The stripping I purchase was from LMC truck in Kansas City. Any ideas?