Sup guys. I have an 81 elky and I get this strange "moaning" sound coming from the right rear side of the car. I'm assuming its the parking brake not fully disengaged. sometimes when i'm in park, and I give it a lil gas, it'l moan then as well. It seems to stop once under way. If anyone with any insight as to what this may be, please let me know. Thanks in advance. BTW there are some amazing cars on this forum and I hope to get there someday.

it does sound like the parking brake. It could be a bearing going out also. But check under the car to be sure the are no Zombies stuck to your under carrage, they are peske little critters.