My Chevy 30 van nose class 3 motor home is stuck on hill/driveway. It sat a long time. Well it needed trans fluid. I put 2 quarts in it cause it wouldn't try to move. And it may need more. It try's to move now but I think parking brakes are rusted and stuck in back. I tried to rock it and can't get it to move much. It go's less than an inch either direction? Maybe it needs more fluids. I need a way to get this rv to move? Is there a way to do that with out taking rv apart to look at brakes. I doubt it's the transmission at this point. I looked at linkage and it works good. That was my first thing to check before I added fluids.