I was wandering what could cause a bad vibration at idle and up to around 1300 RPM's or so. When the clucth is in it makes no difference, makes no difference if you move or not. We checked the harmonic balancer and it seemed to be good also checked the fan it to seemed fine but that is what it seems like. It seems like something is seriously outta balance any held p would be great.

 

check those motor mounts they could be loose.