I just though to ask yall about one of the things that happens to be wrong with my burban. It rolls freely in the park gear. The parking brake helps a little, but I think it must be half worn out because with will still roll if the ground isn't fairly level. Is my transmission screwed up? I'm thinking about using a brick under each tire as my parking aparatus . I saw something in a magazine a long time back about some sort of driveshaft parking brake, would this be a reliable way to keep if from rolling away, and how much would it cost? Is there something I can do to spiffy up my stock parking brake? I really don't feel like getting into huge money trying to fix my turbo400 so that it will park. Could it be that some sort of transmission linkage simply isn't adjusted right. thanks in advance for the help.