well, first off, when i drive the car, it makes a really terrible noise towards the rear end of the car. Like the gears in the diff arent catching. My friend told me its just that the diff isnt being held on securely. One of the bottom bolt holes on the mount is completely ripped apart. The other hole is just stripped, so I thought that bolting it on with a nut and screw would hold the diff and kill the noise temporarely. So i did that, and it still makes that horrible noise. I figured its just my whole differential, and I need to replace that. I have an open diff right now, so I'd figured that i might as well switch to an LSD. But anyway, I'm not completely sure it's the diff, do you guys have any idea what it could be? PLEASE HELP!