I was helping my neighbor do his brakes today, replaced the front pads fine but didn't get to the back drums. I own a jeep not a honda, and on my jeep the rear drum will slide off easily and you can get to the internals fine. On this odyssey the rear drum wouldn't come off easily. I didn't get it off because I know prying on the back plate will get you in big trouble. I did notice a plug on the back panel for adjusting the brakes with a brake adjusting tool. The van has 61000 miles on it. He's gonna take it easy on it for now until I get some info on this. I know that if the drum is too tight on my jeep to back it off with the brake tool via the small plugged hole on the backplate and it will slide right off. I know that the procedures for my vehicle say to adjust the drums until they are tight and can't turn, then back off a little bit until they do turn. Are the rear drums self-adjustable? On my vehicle you can go forward, make a complete stop, go backwards, make a complete stop, and repeat about 8-10 times and they self adjust. Are the rear drums the same way for this vehicle? I would really like to take off the drum cover to see how bad the drum pads are in case they need replacing. Thanks in advance for any help you can offer. Troy