Still having same problem i think. Car was driving good at any speed when i got wheels balanced. Took it out today and vibration was back, this time i slid a steel sleeve from tailhousing down the yolk :shock: Im taking driveshaft in tommorow to be checked. Does anyone know how to put this steel sleeve back into tailshaft? Im thinking my driveshaft is a lil short, but i will talk to driveshaft man about this also. thanks.