looking for cause of vibration
I have recently replaced my clutch (2050) and transmission. ( eaton 13spd) in a 2006 Western Star. First trip out i had a bad vibration in the clutch pedal between 55mph and 65mph. I returned to the shop and they replaced the front differential, drums, brakes, balanced and replaced ends on drive lines and new drive tires. After test drive the vibration is still there. Seems to be at 55 to 65 mph and between 1400 & 1600 rpm.
Is this a good question?