Yeah, it didn't thump from the DS. It does do that, but only when backing up or going slow or sometime, I cannot remember right now..
I was reading over on another board with a user that had kind of the same problem, someone advised him that he probably had bad knock and the motor was going

.
GB, I think you'll be recieving a check from me soon...real soon
-SA
I don't think it has anything to do with the transmission/clutch but probably some misfiring or maybe just maybe some walking? I dont know it only does it at a low rpm when its dogging and it jumps or jerks..I dont even care anymore, It's parked again, going to get a new motor and see what that does..